83875657 has 2 divisors, whose sum is σ = 83875658. Its totient is φ = 83875656.

The previous prime is 83875619. The next prime is 83875661. The reversal of 83875657 is 75657838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67963536 + 15912121 = 8244^2 + 3989^2 .

It is a cyclic number.

It is not a de Polignac number, because 83875657 - 2⁷ = 83875529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83875657.

It is not a weakly prime, because it can be changed into another prime (83875157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41937828 + 41937829.

It is an arithmetic number, because the mean of its divisors is an integer number (41937829).

Almost surely, 2^83875657 is an apocalyptic number.

It is an amenable number.

83875657 is a deficient number, since it is larger than the sum of its proper divisors (1).

83875657 is an equidigital number, since it uses as much as digits as its factorization.

83875657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The square root of 83875657 is about 9158.3654109235. The cubic root of 83875657 is about 437.7357110244.

The spelling of 83875657 in words is "eighty-three million, eight hundred seventy-five thousand, six hundred fifty-seven".