82879854 has 32 divisors (see below), whose sum is σ = 172069920. Its totient is φ = 26581632.

The previous prime is 82879781. The next prime is 82879859. The reversal of 82879854 is 45897828.

It is a happy number.

It is a super-2 number, since 2×82879854² = 13738140398122632, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 82879797 and 82879806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82879859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64264 + ... + 65540.

It is an arithmetic number, because the mean of its divisors is an integer number (5377185).

Almost surely, 2^82879854 is an apocalyptic number.

82879854 is an abundant number, since it is smaller than the sum of its proper divisors (89190066).

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

82879854 is a wasteful number, since it uses less digits than its factorization.

82879854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

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

The square root of 82879854 is about 9103.8373227997. The cubic root of 82879854 is about 435.9964894648.

The spelling of 82879854 in words is "eighty-two million, eight hundred seventy-nine thousand, eight hundred fifty-four".