699747984 has 200 divisors, whose sum is σ = 2236466232. Its totient is φ = 209848320.

The previous prime is 699747973. The next prime is 699748013. The reversal of 699747984 is 489747996.

It can be written as a sum of positive squares in 4 ways, for example, as 135210384 + 564537600 = 11628^2 + 23760^2 .

It is a super-2 number, since 2×699747984² = 979294482224128512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 690262 + ... + 691274.

Almost surely, 2^699747984 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 699747984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118233116).

699747984 is an abundant number, since it is smaller than the sum of its proper divisors (1536718248).

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

699747984 is a wasteful number, since it uses less digits than its factorization.

699747984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1072 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 699747984 is about 26452.7500271711. The cubic root of 699747984 is about 887.7974337074.

The spelling of 699747984 in words is "six hundred ninety-nine million, seven hundred forty-seven thousand, nine hundred eighty-four".