769478399 has 8 divisors (see below), whose sum is σ = 779685648. Its totient is φ = 759317760.

The previous prime is 769478389. The next prime is 769478417. The reversal of 769478399 is 993874967.

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

It is a cyclic number.

It is not a de Polignac number, because 769478399 - 2⁴ = 769478383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769478329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22229 + ... + 45089.

It is an arithmetic number, because the mean of its divisors is an integer number (97460706).

Almost surely, 2^769478399 is an apocalyptic number.

769478399 is a deficient number, since it is larger than the sum of its proper divisors (10207249).

769478399 is a wasteful number, since it uses less digits than its factorization.

769478399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23305.

The product of its digits is 20575296, while the sum is 62.

The square root of 769478399 is about 27739.4736611926. The cubic root of 769478399 is about 916.3586369701.

The spelling of 769478399 in words is "seven hundred sixty-nine million, four hundred seventy-eight thousand, three hundred ninety-nine".