699259968 has 252 divisors, whose sum is σ = 2248529920. Its totient is φ = 207567360.

The previous prime is 699259949. The next prime is 699259991. The reversal of 699259968 is 869952996.

It is a super-2 number, since 2×699259968² = 977929005694722048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5505921 + ... + 5506047.

Almost surely, 2^699259968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699259968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1124264960).

699259968 is an abundant number, since it is smaller than the sum of its proper divisors (1549269952).

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

699259968 is a wasteful number, since it uses less digits than its factorization.

699259968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 222 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 63.

The square root of 699259968 is about 26443.5241221740. The cubic root of 699259968 is about 887.5909974274.

The spelling of 699259968 in words is "six hundred ninety-nine million, two hundred fifty-nine thousand, nine hundred sixty-eight".