82945745 has 8 divisors (see below), whose sum is σ = 100521000. Its totient is φ = 65699200.

The previous prime is 82945721. The next prime is 82945757. The reversal of 82945745 is 54754928.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4870849 + 78074896 = 2207^2 + 8836^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-82945745 is a prime.

It is a super-2 number, since 2×82945745² = 13759993227210050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82945696 and 82945705.

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, 81620 + ... + 82629.

It is an arithmetic number, because the mean of its divisors is an integer number (12565125).

Almost surely, 2^82945745 is an apocalyptic number.

It is an amenable number.

82945745 is a deficient number, since it is larger than the sum of its proper divisors (17575255).

82945745 is a wasteful number, since it uses less digits than its factorization.

82945745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164355.

The product of its digits is 403200, while the sum is 44.

The square root of 82945745 is about 9107.4554624220. The cubic root of 82945745 is about 436.1120005872.

The spelling of 82945745 in words is "eighty-two million, nine hundred forty-five thousand, seven hundred forty-five".