699958870 has 32 divisors (see below), whose sum is σ = 1358058240. Its totient is φ = 258215040.

The previous prime is 699958843. The next prime is 699958871. The reversal of 699958870 is 78859996.

It is a junction number, because it is equal to n+sod(n) for n = 699958799 and 699958808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699958871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227140 + ... + 230200.

It is an arithmetic number, because the mean of its divisors is an integer number (42439320).

Almost surely, 2^699958870 is an apocalyptic number.

699958870 is a deficient number, since it is larger than the sum of its proper divisors (658099370).

699958870 is a wasteful number, since it uses less digits than its factorization.

699958870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The square root of 699958870 is about 26456.7358152891. The cubic root of 699958870 is about 887.8866111679.

The spelling of 699958870 in words is "six hundred ninety-nine million, nine hundred fifty-eight thousand, eight hundred seventy".