82473345 has 24 divisors (see below), whose sum is σ = 146443752. Its totient is φ = 42912000.

The previous prime is 82473337. The next prime is 82473371. The reversal of 82473345 is 54337428.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9678321 + 72795024 = 3111^2 + 8532^2 .

It is not a de Polignac number, because 82473345 - 2³ = 82473337 is a prime.

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, 20506 + ... + 24195.

It is an arithmetic number, because the mean of its divisors is an integer number (6101823).

Almost surely, 2^82473345 is an apocalyptic number.

It is an amenable number.

82473345 is a deficient number, since it is larger than the sum of its proper divisors (63970407).

82473345 is a wasteful number, since it uses less digits than its factorization.

82473345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44753 (or 44750 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 82473345 is about 9081.4836342968. The cubic root of 82473345 is about 435.2824958530.

The spelling of 82473345 in words is "eighty-two million, four hundred seventy-three thousand, three hundred forty-five".