768470409 has 40 divisors (see below), whose sum is σ = 1381026240. Its totient is φ = 416008224.

The previous prime is 768470389. The next prime is 768470413. The reversal of 768470409 is 904074867.

It is not a de Polignac number, because 768470409 - 2¹⁷ = 768339337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (768470909) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24894 + ... + 46439.

It is an arithmetic number, because the mean of its divisors is an integer number (34525656).

Almost surely, 2^768470409 is an apocalyptic number.

It is an amenable number.

768470409 is a deficient number, since it is larger than the sum of its proper divisors (612555831).

768470409 is a wasteful number, since it uses less digits than its factorization.

768470409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71371 (or 71362 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 768470409 is about 27721.2988332077. The cubic root of 768470409 is about 915.9583294513.

The spelling of 768470409 in words is "seven hundred sixty-eight million, four hundred seventy thousand, four hundred nine".