83966025 has 48 divisors (see below), whose sum is σ = 163114560. Its totient is φ = 37574400.

The previous prime is 83966021. The next prime is 83966041. The reversal of 83966025 is 52066938.

It is not a de Polignac number, because 83966025 - 2² = 83966021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (83966021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6811 + ... + 14639.

It is an arithmetic number, because the mean of its divisors is an integer number (3398220).

Almost surely, 2^83966025 is an apocalyptic number.

It is an amenable number.

83966025 is a deficient number, since it is larger than the sum of its proper divisors (79148535).

83966025 is a wasteful number, since it uses less digits than its factorization.

83966025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866 (or 7861 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 83966025 is about 9163.2977142511. The cubic root of 83966025 is about 437.8928607237.

The spelling of 83966025 in words is "eighty-three million, nine hundred sixty-six thousand, twenty-five".