83997025 has 36 divisors (see below), whose sum is σ = 122135040. Its totient is φ = 57136800.

The previous prime is 83997007. The next prime is 83997049. The reversal of 83997025 is 52079938.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-83997025 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233796 + ... + 234154.

It is an arithmetic number, because the mean of its divisors is an integer number (3392640).

Almost surely, 2^83997025 is an apocalyptic number.

It is an amenable number.

83997025 is a deficient number, since it is larger than the sum of its proper divisors (38138015).

83997025 is a wasteful number, since it uses less digits than its factorization.

83997025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 83997025 is about 9164.9890889188. The cubic root of 83997025 is about 437.9467436621.

The spelling of 83997025 in words is "eighty-three million, nine hundred ninety-seven thousand, twenty-five".