83620025 has 24 divisors (see below), whose sum is σ = 110600064. Its totient is φ = 62496000.

The previous prime is 83620013. The next prime is 83620027. The reversal of 83620025 is 52002638.

It is not a de Polignac number, because 83620025 - 2⁶ = 83619961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83619976 and 83620003.

It is not an unprimeable number, because it can be changed into a prime (83620027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63524 + ... + 64826.

It is an arithmetic number, because the mean of its divisors is an integer number (4608336).

Almost surely, 2^83620025 is an apocalyptic number.

83620025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83620025 is a deficient number, since it is larger than the sum of its proper divisors (26980039).

83620025 is a wasteful number, since it uses less digits than its factorization.

83620025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 83620025 is about 9144.3985586806. The cubic root of 83620025 is about 437.2905555309.

The spelling of 83620025 in words is "eighty-three million, six hundred twenty thousand, twenty-five".