82177382 has 16 divisors (see below), whose sum is σ = 141987840. Its totient is φ = 34940808.

The previous prime is 82177351. The next prime is 82177397. The reversal of 82177382 is 28377128.

It is a super-2 number, since 2×82177382² = 13506244224747848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21332 + ... + 24887.

It is an arithmetic number, because the mean of its divisors is an integer number (8874240).

Almost surely, 2^82177382 is an apocalyptic number.

82177382 is a deficient number, since it is larger than the sum of its proper divisors (59810458).

82177382 is a wasteful number, since it uses less digits than its factorization.

82177382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46355.

The product of its digits is 37632, while the sum is 38.

The square root of 82177382 is about 9065.1741296017. The cubic root of 82177382 is about 434.7611883351.

The spelling of 82177382 in words is "eighty-two million, one hundred seventy-seven thousand, three hundred eighty-two".