783251213 has 4 divisors (see below), whose sum is σ = 783715548. Its totient is φ = 782786880.

The previous prime is 783251179. The next prime is 783251221. The reversal of 783251213 is 312152387.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 595506409 + 187744804 = 24403^2 + 13702^2 .

It is a cyclic number.

It is not a de Polignac number, because 783251213 - 2¹⁰ = 783250189 is a prime.

It is a super-2 number, since 2×783251213² = 1226964925331942738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 783251213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (783251713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229628 + ... + 233013.

It is an arithmetic number, because the mean of its divisors is an integer number (195928887).

Almost surely, 2^783251213 is an apocalyptic number.

It is an amenable number.

783251213 is a deficient number, since it is larger than the sum of its proper divisors (464335).

783251213 is a wasteful number, since it uses less digits than its factorization.

783251213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464334.

The product of its digits is 10080, while the sum is 32.

The square root of 783251213 is about 27986.6256093871. The cubic root of 783251213 is about 921.7936075271.

The spelling of 783251213 in words is "seven hundred eighty-three million, two hundred fifty-one thousand, two hundred thirteen".