710640387 has 6 divisors (see below), whose sum is σ = 1026480572. Its totient is φ = 473760252.

The previous prime is 710640383. The next prime is 710640401. The reversal of 710640387 is 783046017.

710640387 is a `hidden beast` number, since 7 + 1 + 0 + 640 + 3 + 8 + 7 = 666.

It is not a de Polignac number, because 710640387 - 2² = 710640383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (710640383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39480013 + ... + 39480030.

Almost surely, 2^710640387 is an apocalyptic number.

710640387 is a deficient number, since it is larger than the sum of its proper divisors (315840185).

710640387 is a wasteful number, since it uses less digits than its factorization.

710640387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78960049 (or 78960046 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 710640387 is about 26657.8391284815. The cubic root of 710640387 is about 892.3802744091.

The spelling of 710640387 in words is "seven hundred ten million, six hundred forty thousand, three hundred eighty-seven".