478393707 has 24 divisors (see below), whose sum is σ = 703261440. Its totient is φ = 289049200.

The previous prime is 478393703. The next prime is 478393709. The reversal of 478393707 is 707393874.

It is a happy number.

It is not a de Polignac number, because 478393707 - 2² = 478393703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478393703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128482 + ... + 132152.

It is an arithmetic number, because the mean of its divisors is an integer number (29302560).

Almost surely, 2^478393707 is an apocalyptic number.

478393707 is a deficient number, since it is larger than the sum of its proper divisors (224867733).

478393707 is a wasteful number, since it uses less digits than its factorization.

478393707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 48.

The square root of 478393707 is about 21872.2131253332. The cubic root of 478393707 is about 782.0991598757.

The spelling of 478393707 in words is "four hundred seventy-eight million, three hundred ninety-three thousand, seven hundred seven".