82870497 has 6 divisors (see below), whose sum is σ = 119701842. Its totient is φ = 55246992.

The previous prime is 82870451. The next prime is 82870519. The reversal of 82870497 is 79407828.

82870497 is a `hidden beast` number, since 82 + 87 + 0 + 497 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53450721 + 29419776 = 7311^2 + 5424^2 .

It is not a de Polignac number, because 82870497 - 2¹⁰ = 82869473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82870297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4603908 + ... + 4603925.

It is an arithmetic number, because the mean of its divisors is an integer number (19950307).

Almost surely, 2^82870497 is an apocalyptic number.

It is an amenable number.

82870497 is a deficient number, since it is larger than the sum of its proper divisors (36831345).

82870497 is a wasteful number, since it uses less digits than its factorization.

82870497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207839 (or 9207836 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 82870497 is about 9103.3234041201. The cubic root of 82870497 is about 435.9800810837.

The spelling of 82870497 in words is "eighty-two million, eight hundred seventy thousand, four hundred ninety-seven".