82361957 has 8 divisors (see below), whose sum is σ = 87653016. Its totient is φ = 77120512.

The previous prime is 82361953. The next prime is 82361999. The reversal of 82361957 is 75916328.

It can be written as a sum of positive squares in 4 ways, for example, as 28398241 + 53963716 = 5329^2 + 7346^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82361957 - 2² = 82361953 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 (82361953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8948 + ... + 15645.

It is an arithmetic number, because the mean of its divisors is an integer number (10956627).

Almost surely, 2^82361957 is an apocalyptic number.

It is an amenable number.

82361957 is a deficient number, since it is larger than the sum of its proper divisors (5291059).

82361957 is a wasteful number, since it uses less digits than its factorization.

82361957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24807.

The product of its digits is 90720, while the sum is 41.

The square root of 82361957 is about 9075.3488638179. The cubic root of 82361957 is about 435.0864442641.

The spelling of 82361957 in words is "eighty-two million, three hundred sixty-one thousand, nine hundred fifty-seven".