385407687 has 36 divisors (see below), whose sum is σ = 606049080. Its totient is φ = 217221984.

The previous prime is 385407643. The next prime is 385407707. The reversal of 385407687 is 786704583.

It is not a de Polignac number, because 385407687 - 2⁶ = 385407623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385407587) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1682889 + ... + 1683117.

Almost surely, 2^385407687 is an apocalyptic number.

385407687 is a deficient number, since it is larger than the sum of its proper divisors (220641393).

385407687 is a wasteful number, since it uses less digits than its factorization.

385407687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 385407687 is about 19631.8029482776. The cubic root of 385407687 is about 727.7353266168.

The spelling of 385407687 in words is "three hundred eighty-five million, four hundred seven thousand, six hundred eighty-seven".