8520746 has 8 divisors (see below), whose sum is σ = 13764324. Its totient is φ = 3932640.

The previous prime is 8520739. The next prime is 8520749. The reversal of 8520746 is 6470258.

It can be written as a sum of positive squares in 2 ways, for example, as 6195121 + 2325625 = 2489^2 + 1525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8520746² = 145206224793032, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8520749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163835 + ... + 163886.

Almost surely, 2^8520746 is an apocalyptic number.

8520746 is a deficient number, since it is larger than the sum of its proper divisors (5243578).

8520746 is a wasteful number, since it uses less digits than its factorization.

8520746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327736.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 8520746 is about 2919.0316887626. The cubic root of 8520746 is about 204.2486555245.

The spelling of 8520746 in words is "eight million, five hundred twenty thousand, seven hundred forty-six".