85972955 has 4 divisors (see below), whose sum is σ = 103167552. Its totient is φ = 68778360.

The previous prime is 85972949. The next prime is 85972969. The reversal of 85972955 is 55927958.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85972955 - 2¹⁴ = 85956571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8597291 + ... + 8597300.

It is an arithmetic number, because the mean of its divisors is an integer number (25791888).

Almost surely, 2^85972955 is an apocalyptic number.

85972955 is a deficient number, since it is larger than the sum of its proper divisors (17194597).

85972955 is a wasteful number, since it uses less digits than its factorization.

85972955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17194596.

The product of its digits is 1134000, while the sum is 50.

The square root of 85972955 is about 9272.1602121620. The cubic root of 85972955 is about 441.3542213294.

The spelling of 85972955 in words is "eighty-five million, nine hundred seventy-two thousand, nine hundred fifty-five".