8252720 has 40 divisors (see below), whose sum is σ = 21930144. Its totient is φ = 2829312.

The previous prime is 8252711. The next prime is 8252737. The reversal of 8252720 is 272528.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 8252720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6809 + ... + 7928.

Almost surely, 2^8252720 is an apocalyptic number.

8252720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8252720 is an abundant number, since it is smaller than the sum of its proper divisors (13677424).

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

8252720 is a wasteful number, since it uses less digits than its factorization.

8252720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14757 (or 14751 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 8252720 is about 2872.7547754725. The cubic root of 8252720 is about 202.0842050009.

The spelling of 8252720 in words is "eight million, two hundred fifty-two thousand, seven hundred twenty".