82705377 has 8 divisors (see below), whose sum is σ = 110423680. Its totient is φ = 55062000.

The previous prime is 82705373. The next prime is 82705421. The reversal of 82705377 is 77350728.

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

It is not a de Polignac number, because 82705377 - 2² = 82705373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82705373) 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, 16102 + ... + 20607.

It is an arithmetic number, because the mean of its divisors is an integer number (13802960).

Almost surely, 2^82705377 is an apocalyptic number.

It is an amenable number.

82705377 is a deficient number, since it is larger than the sum of its proper divisors (27718303).

82705377 is a wasteful number, since it uses less digits than its factorization.

82705377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37463.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 82705377 is about 9094.2496666850. The cubic root of 82705377 is about 435.6903241759.

The spelling of 82705377 in words is "eighty-two million, seven hundred five thousand, three hundred seventy-seven".