82900945 has 8 divisors (see below), whose sum is σ = 99573120. Its totient is φ = 66259440.

The previous prime is 82900927. The next prime is 82900967. The reversal of 82900945 is 54900928.

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

It is not a de Polignac number, because 82900945 - 2⁷ = 82900817 is a prime.

It is a super-3 number, since 3×82900945³ (a number of 25 digits) contains 333 as substring.

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, 1225 + ... + 12934.

It is an arithmetic number, because the mean of its divisors is an integer number (12446640).

Almost surely, 2^82900945 is an apocalyptic number.

It is an amenable number.

82900945 is a deficient number, since it is larger than the sum of its proper divisors (16672175).

82900945 is a wasteful number, since it uses less digits than its factorization.

82900945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15335.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 82900945 is about 9104.9956068084. The cubic root of 82900945 is about 436.0334699918.

It can be divided in two parts, 82900 and 945, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 82900945 in words is "eighty-two million, nine hundred thousand, nine hundred forty-five".