83292521 has 8 divisors (see below), whose sum is σ = 91392840. Its totient is φ = 75434112.

The previous prime is 83292497. The next prime is 83292527. The reversal of 83292521 is 12529238.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13402921 + 69889600 = 3661^2 + 8360^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-83292521 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83292527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59756 + ... + 61133.

It is an arithmetic number, because the mean of its divisors is an integer number (11424105).

Almost surely, 2^83292521 is an apocalyptic number.

It is an amenable number.

83292521 is a deficient number, since it is larger than the sum of its proper divisors (8100319).

83292521 is a wasteful number, since it uses less digits than its factorization.

83292521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120955.

The product of its digits is 8640, while the sum is 32.

The square root of 83292521 is about 9126.4736344330. The cubic root of 83292521 is about 436.7189150101.

The spelling of 83292521 in words is "eighty-three million, two hundred ninety-two thousand, five hundred twenty-one".