8572445 has 24 divisors (see below), whose sum is σ = 12316416. Its totient is φ = 5610528.

The previous prime is 8572433. The next prime is 8572451. The reversal of 8572445 is 5442758.

8572445 = 214² + 215² + ... + 328².

It is not a de Polignac number, because 8572445 - 2²² = 4378141 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18284 + ... + 18746.

It is an arithmetic number, because the mean of its divisors is an integer number (513184).

Almost surely, 2^8572445 is an apocalyptic number.

It is an amenable number.

8572445 is a deficient number, since it is larger than the sum of its proper divisors (3743971).

8572445 is a wasteful number, since it uses less digits than its factorization.

8572445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 498 counting only the distinct ones).

The product of its digits is 44800, while the sum is 35.

The square root of 8572445 is about 2927.8738019252. The cubic root of 8572445 is about 204.6609107703.

The spelling of 8572445 in words is "eight million, five hundred seventy-two thousand, four hundred forty-five".