82591677 has 16 divisors (see below), whose sum is σ = 139838080. Its totient is φ = 47195136.

The previous prime is 82591633. The next prime is 82591679. The reversal of 82591677 is 77619528.

It is not a de Polignac number, because 82591677 - 2¹⁴ = 82575293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82591679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218308 + ... + 218685.

It is an arithmetic number, because the mean of its divisors is an integer number (8739880).

Almost surely, 2^82591677 is an apocalyptic number.

It is an amenable number.

82591677 is a deficient number, since it is larger than the sum of its proper divisors (57246403).

82591677 is a wasteful number, since it uses less digits than its factorization.

82591677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437009 (or 437003 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 82591677 is about 9087.9963138197. The cubic root of 82591677 is about 435.4905761469.

The spelling of 82591677 in words is "eighty-two million, five hundred ninety-one thousand, six hundred seventy-seven".