8572987 has 4 divisors (see below), whose sum is σ = 8676360. Its totient is φ = 8469616.

The previous prime is 8572961. The next prime is 8573003. The reversal of 8572987 is 7892758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7892758 = 2 ⋅3946379.

It is a cyclic number.

It is not a de Polignac number, because 8572987 - 2¹⁵ = 8540219 is a prime.

It is a super-2 number, since 2×8572987² = 146992212204338, which contains 22 as substring.

It is a Duffinian number.

8572987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8572387) 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, 51562 + ... + 51727.

It is an arithmetic number, because the mean of its divisors is an integer number (2169090).

Almost surely, 2^8572987 is an apocalyptic number.

8572987 is a deficient number, since it is larger than the sum of its proper divisors (103373).

8572987 is a wasteful number, since it uses less digits than its factorization.

8572987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103372.

The product of its digits is 282240, while the sum is 46.

The square root of 8572987 is about 2927.9663590964. The cubic root of 8572987 is about 204.6652239651.

It can be divided in two parts, 8572 and 987, that added together give a palindrome (9559).

The spelling of 8572987 in words is "eight million, five hundred seventy-two thousand, nine hundred eighty-seven".