670707531 has 48 divisors (see below), whose sum is σ = 1112057856. Its totient is φ = 386324928.

The previous prime is 670707529. The next prime is 670707533. The reversal of 670707531 is 135707076.

It is an interprime number because it is at equal distance from previous prime (670707529) and next prime (670707533).

It is not a de Polignac number, because 670707531 - 2¹ = 670707529 is a prime.

It is a super-2 number, since 2×670707531² = 899697184280231922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (670707533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123826 + ... + 129128.

It is an arithmetic number, because the mean of its divisors is an integer number (23167872).

Almost surely, 2^670707531 is an apocalyptic number.

670707531 is a deficient number, since it is larger than the sum of its proper divisors (441350325).

670707531 is a wasteful number, since it uses less digits than its factorization.

670707531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392 (or 5389 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The square root of 670707531 is about 25898.0217584278. The cubic root of 670707531 is about 875.3419206844.

The spelling of 670707531 in words is "six hundred seventy million, seven hundred seven thousand, five hundred thirty-one".