699993970 has 64 divisors (see below), whose sum is σ = 1386927360. Its totient is φ = 252806400.

The previous prime is 699993941. The next prime is 699993979. The reversal of 699993970 is 79399996.

It is a junction number, because it is equal to n+sod(n) for n = 699993899 and 699993908.

It is not an unprimeable number, because it can be changed into a prime (699993979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1670421 + ... + 1670839.

It is an arithmetic number, because the mean of its divisors is an integer number (21670740).

Almost surely, 2^699993970 is an apocalyptic number.

699993970 is a deficient number, since it is larger than the sum of its proper divisors (686933390).

699993970 is a wasteful number, since it uses less digits than its factorization.

699993970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 7440174, while the sum is 61.

The square root of 699993970 is about 26457.3991541119. The cubic root of 699993970 is about 887.9014521824.

The spelling of 699993970 in words is "six hundred ninety-nine million, nine hundred ninety-three thousand, nine hundred seventy".