82140877 has 16 divisors (see below), whose sum is σ = 101675392. Its totient is φ = 64618560.

The previous prime is 82140871. The next prime is 82140899. The reversal of 82140877 is 77804128.

It is a cyclic number.

It is not a de Polignac number, because 82140877 - 2¹⁵ = 82108109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82140871) 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, 13978 + ... + 18964.

It is an arithmetic number, because the mean of its divisors is an integer number (6354712).

Almost surely, 2^82140877 is an apocalyptic number.

It is an amenable number.

82140877 is a deficient number, since it is larger than the sum of its proper divisors (19534515).

82140877 is a wasteful number, since it uses less digits than its factorization.

82140877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 82140877 is about 9063.1604311079. The cubic root of 82140877 is about 434.6968019738.

The spelling of 82140877 in words is "eighty-two million, one hundred forty thousand, eight hundred seventy-seven".