700507720 has 96 divisors (see below), whose sum is σ = 1750827960. Its totient is φ = 252032000.

The previous prime is 700507663. The next prime is 700507721. The reversal of 700507720 is 27705007.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 700449156 + 58564 = 26466^2 + 242^2 .

It is a super-2 number, since 2×700507720² = 981422131559196800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (700507721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488124 + ... + 489556.

Almost surely, 2^700507720 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 700507720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875413980).

700507720 is an abundant number, since it is smaller than the sum of its proper divisors (1050320240).

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

700507720 is a wasteful number, since it uses less digits than its factorization.

700507720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 28.

The square root of 700507720 is about 26467.1063775396. The cubic root of 700507720 is about 888.1186196814.

The spelling of 700507720 in words is "seven hundred million, five hundred seven thousand, seven hundred twenty".