82785498 has 16 divisors (see below), whose sum is σ = 165738720. Its totient is φ = 27567216.

The previous prime is 82785497. The next prime is 82785499. The reversal of 82785498 is 89458728.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82785497) and next prime (82785499).

It is a self number, because there is not a number n which added to its sum of digits gives 82785498.

It is not an unprimeable number, because it can be changed into a prime (82785491) 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, 40 + ... + 12867.

It is an arithmetic number, because the mean of its divisors is an integer number (10358670).

Almost surely, 2^82785498 is an apocalyptic number.

82785498 is an abundant number, since it is smaller than the sum of its proper divisors (82953222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82785498 is a wasteful number, since it uses less digits than its factorization.

82785498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13981.

The product of its digits is 1290240, while the sum is 51.

The square root of 82785498 is about 9098.6536366652. The cubic root of 82785498 is about 435.8309707272.

The spelling of 82785498 in words is "eighty-two million, seven hundred eighty-five thousand, four hundred ninety-eight".