783904925 has 12 divisors (see below), whose sum is σ = 978238356. Its totient is φ = 623126400.

The previous prime is 783904909. The next prime is 783904931. The reversal of 783904925 is 529409387.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 102799321 + 681105604 = 10139^2 + 26098^2 .

It is not a de Polignac number, because 783904925 - 2⁴ = 783904909 is a prime.

It is a super-2 number, since 2×783904925² = 1229013862878511250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 783904925.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95936 + ... + 103785.

It is an arithmetic number, because the mean of its divisors is an integer number (81519863).

Almost surely, 2^783904925 is an apocalyptic number.

It is an amenable number.

783904925 is a deficient number, since it is larger than the sum of its proper divisors (194333431).

783904925 is a wasteful number, since it uses less digits than its factorization.

783904925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199888 (or 199883 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 783904925 is about 27998.3021806680. The cubic root of 783904925 is about 922.0499833309.

The spelling of 783904925 in words is "seven hundred eighty-three million, nine hundred four thousand, nine hundred twenty-five".