769928438 has 8 divisors (see below), whose sum is σ = 1165113288. Its totient is φ = 381557344.

The previous prime is 769928437. The next prime is 769928441. The reversal of 769928438 is 834829967.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×769928438² = 1185579599282239688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769928437) 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 3 ways as a sum of consecutive naturals, for example, 1703156 + ... + 1703607.

It is an arithmetic number, because the mean of its divisors is an integer number (145639161).

Almost surely, 2^769928438 is an apocalyptic number.

769928438 is a deficient number, since it is larger than the sum of its proper divisors (395184850).

769928438 is a wasteful number, since it uses less digits than its factorization.

769928438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406878.

The product of its digits is 5225472, while the sum is 56.

The square root of 769928438 is about 27747.5843633279. The cubic root of 769928438 is about 916.5372500638.

The spelling of 769928438 in words is "seven hundred sixty-nine million, nine hundred twenty-eight thousand, four hundred thirty-eight".