82890955 has 8 divisors (see below), whose sum is σ = 113679072. Its totient is φ = 56839488.

The previous prime is 82890953. The next prime is 82891007. The reversal of 82890955 is 55909828.

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

It is a cyclic number.

It is not a de Polignac number, because 82890955 - 2¹ = 82890953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82890953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184122 + ... + 1184191.

It is an arithmetic number, because the mean of its divisors is an integer number (14209884).

Almost surely, 2^82890955 is an apocalyptic number.

82890955 is a deficient number, since it is larger than the sum of its proper divisors (30788117).

82890955 is a wasteful number, since it uses less digits than its factorization.

82890955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368325.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 82890955 is about 9104.4469903449. The cubic root of 82890955 is about 436.0159545125.

It can be divided in two parts, 82890 and 955, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 82890955 in words is "eighty-two million, eight hundred ninety thousand, nine hundred fifty-five".