83745677 has 2 divisors, whose sum is σ = 83745678. Its totient is φ = 83745676.

The previous prime is 83745659. The next prime is 83745679. The reversal of 83745677 is 77654738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82555396 + 1190281 = 9086^2 + 1091^2 .

It is a cyclic number.

It is not a de Polignac number, because 83745677 - 2²⁶ = 16636813 is a prime.

Together with 83745679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83745679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41872838 + 41872839.

It is an arithmetic number, because the mean of its divisors is an integer number (41872839).

Almost surely, 2^83745677 is an apocalyptic number.

It is an amenable number.

83745677 is a deficient number, since it is larger than the sum of its proper divisors (1).

83745677 is an equidigital number, since it uses as much as digits as its factorization.

83745677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 47.

The square root of 83745677 is about 9151.2664150925. The cubic root of 83745677 is about 437.5094781076.

The spelling of 83745677 in words is "eighty-three million, seven hundred forty-five thousand, six hundred seventy-seven".