700809138 has 16 divisors (see below), whose sum is σ = 1557353760. Its totient is φ = 233603028.

The previous prime is 700809127. The next prime is 700809143. The reversal of 700809138 is 831908007.

It is a super-2 number, since 2×700809138² = 982266895808606088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6488920 + ... + 6489027.

It is an arithmetic number, because the mean of its divisors is an integer number (97334610).

Almost surely, 2^700809138 is an apocalyptic number.

700809138 is an abundant number, since it is smaller than the sum of its proper divisors (856544622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

700809138 is a wasteful number, since it uses less digits than its factorization.

700809138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12977958 (or 12977952 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 700809138 is about 26472.7999652473. The cubic root of 700809138 is about 888.2459828042.

The spelling of 700809138 in words is "seven hundred million, eight hundred nine thousand, one hundred thirty-eight".