83527491 has 4 divisors (see below), whose sum is σ = 111369992. Its totient is φ = 55684992.

The previous prime is 83527487. The next prime is 83527567. The reversal of 83527491 is 19472538.

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

It is not a de Polignac number, because 83527491 - 2² = 83527487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83527441) 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, 13921246 + ... + 13921251.

It is an arithmetic number, because the mean of its divisors is an integer number (27842498).

Almost surely, 2^83527491 is an apocalyptic number.

83527491 is a deficient number, since it is larger than the sum of its proper divisors (27842501).

83527491 is a wasteful number, since it uses less digits than its factorization.

83527491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27842500.

The product of its digits is 60480, while the sum is 39.

The square root of 83527491 is about 9139.3375580509. The cubic root of 83527491 is about 437.1291939457.

The spelling of 83527491 in words is "eighty-three million, five hundred twenty-seven thousand, four hundred ninety-one".