82652391 has 12 divisors (see below), whose sum is σ = 119522832. Its totient is φ = 55038816.

The previous prime is 82652329. The next prime is 82652393. The reversal of 82652391 is 19325628.

82652391 is a `hidden beast` number, since 8 + 265 + 2 + 391 = 666.

It is not a de Polignac number, because 82652391 - 2⁶ = 82652327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82652393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3955 + ... + 13451.

It is an arithmetic number, because the mean of its divisors is an integer number (9960236).

Almost surely, 2^82652391 is an apocalyptic number.

82652391 is a deficient number, since it is larger than the sum of its proper divisors (36870441).

82652391 is a wasteful number, since it uses less digits than its factorization.

82652391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10470 (or 10467 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 82652391 is about 9091.3360404288. The cubic root of 82652391 is about 435.5972612253.

The spelling of 82652391 in words is "eighty-two million, six hundred fifty-two thousand, three hundred ninety-one".