700005664 has 48 divisors (see below), whose sum is σ = 1419191928. Its totient is φ = 339628032.

The previous prime is 700005661. The next prime is 700005671. The reversal of 700005664 is 466500007.

It can be written as a sum of positive squares in 4 ways, for example, as 693795600 + 6210064 = 26340^2 + 2492^2 .

It is not an unprimeable number, because it can be changed into a prime (700005661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701614 + ... + 702610.

Almost surely, 2^700005664 is an apocalyptic number.

700005664 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 700005664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709595964).

700005664 is an abundant number, since it is smaller than the sum of its proper divisors (719186264).

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

700005664 is a wasteful number, since it uses less digits than its factorization.

700005664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1629 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 700005664 is about 26457.6201499681. The cubic root of 700005664 is about 887.9063965401.

The spelling of 700005664 in words is "seven hundred million, five thousand, six hundred sixty-four".