83116577 has 2 divisors, whose sum is σ = 83116578. Its totient is φ = 83116576.

The previous prime is 83116567. The next prime is 83116597. The reversal of 83116577 is 77561138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45711121 + 37405456 = 6761^2 + 6116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83116577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83116577.

It is not a weakly prime, because it can be changed into another prime (83116567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41558288 + 41558289.

It is an arithmetic number, because the mean of its divisors is an integer number (41558289).

Almost surely, 2^83116577 is an apocalyptic number.

It is an amenable number.

83116577 is a deficient number, since it is larger than the sum of its proper divisors (1).

83116577 is an equidigital number, since it uses as much as digits as its factorization.

83116577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 83116577 is about 9116.8293282259. The cubic root of 83116577 is about 436.4111953464.

The spelling of 83116577 in words is "eighty-three million, one hundred sixteen thousand, five hundred seventy-seven".