784949487 has 32 divisors (see below), whose sum is σ = 1231156224. Its totient is φ = 435456000.

The previous prime is 784949479. The next prime is 784949587.

784949487 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 784949487 - 2³ = 784949479 is a prime.

It is a super-2 number, since 2×784949487² = 1232291394283126338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 784949487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (784949437) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 489487 + ... + 491087.

It is an arithmetic number, because the mean of its divisors is an integer number (38473632).

Almost surely, 2^784949487 is an apocalyptic number.

784949487 is a deficient number, since it is larger than the sum of its proper divisors (446206737).

784949487 is a wasteful number, since it uses less digits than its factorization.

784949487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279.

The product of its digits is 16257024, while the sum is 60.

The square root of 784949487 is about 28016.9499946015. The cubic root of 784949487 is about 922.4593488304.

The spelling of 784949487 in words is "seven hundred eighty-four million, nine hundred forty-nine thousand, four hundred eighty-seven".