8532991 has 4 divisors (see below), whose sum is σ = 8714592. Its totient is φ = 8351392.

The previous prime is 8532983. The next prime is 8533001. The reversal of 8532991 is 1992358.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8532991 - 2³ = 8532983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8532991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8532911) 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, 90730 + ... + 90823.

It is an arithmetic number, because the mean of its divisors is an integer number (2178648).

Almost surely, 2^8532991 is an apocalyptic number.

8532991 is a deficient number, since it is larger than the sum of its proper divisors (181601).

8532991 is a wasteful number, since it uses less digits than its factorization.

8532991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181600.

The product of its digits is 19440, while the sum is 37.

The square root of 8532991 is about 2921.1283778704. The cubic root of 8532991 is about 204.3464492969.

It can be divided in two parts, 853 and 2991, that added together give a square (3844 = 62²).

The spelling of 8532991 in words is "eight million, five hundred thirty-two thousand, nine hundred ninety-one".