82020957 has 8 divisors (see below), whose sum is σ = 110383776. Its totient is φ = 54169392.

The previous prime is 82020949. The next prime is 82020959. The reversal of 82020957 is 75902028.

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

It is not a de Polignac number, because 82020957 - 2³ = 82020949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82020959) 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, 127438 + ... + 128079.

It is an arithmetic number, because the mean of its divisors is an integer number (13797972).

Almost surely, 2^82020957 is an apocalyptic number.

It is an amenable number.

82020957 is a deficient number, since it is larger than the sum of its proper divisors (28362819).

82020957 is a wasteful number, since it uses less digits than its factorization.

82020957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255627.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 82020957 is about 9056.5422209583. The cubic root of 82020957 is about 434.4851565212.

The spelling of 82020957 in words is "eighty-two million, twenty thousand, nine hundred fifty-seven".