82589715 has 24 divisors (see below), whose sum is σ = 154168560. Its totient is φ = 40659264.

The previous prime is 82589701. The next prime is 82589729. The reversal of 82589715 is 51798528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82589701) and next prime (82589729).

It is not a de Polignac number, because 82589715 - 2¹⁶ = 82524179 is a prime.

It is a super-2 number, since 2×82589715² = 13642122047562450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70005 + ... + 71174.

It is an arithmetic number, because the mean of its divisors is an integer number (6423690).

Almost surely, 2^82589715 is an apocalyptic number.

82589715 is a deficient number, since it is larger than the sum of its proper divisors (71578845).

82589715 is a wasteful number, since it uses less digits than its factorization.

82589715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141203 (or 141200 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 82589715 is about 9087.8883685926. Note that the first 3 decimals coincide. The cubic root of 82589715 is about 435.4871276990.

The spelling of 82589715 in words is "eighty-two million, five hundred eighty-nine thousand, seven hundred fifteen".