82638346 has 16 divisors (see below), whose sum is σ = 144961344. Its totient is φ = 34592544.

The previous prime is 82638323. The next prime is 82638383. The reversal of 82638346 is 64383628.

82638346 = T₂₈₈ + T₂₈₉ + ... + T₈₀₃.

It is a junction number, because it is equal to n+sod(n) for n = 82638299 and 82638308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68035 + ... + 69238.

It is an arithmetic number, because the mean of its divisors is an integer number (9060084).

Almost surely, 2^82638346 is an apocalyptic number.

82638346 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

82638346 is a deficient number, since it is larger than the sum of its proper divisors (62322998).

82638346 is a wasteful number, since it uses less digits than its factorization.

82638346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137325.

The product of its digits is 165888, while the sum is 40.

The square root of 82638346 is about 9090.5635688883. The cubic root of 82638346 is about 435.5725863590.

The spelling of 82638346 in words is "eighty-two million, six hundred thirty-eight thousand, three hundred forty-six".