85422987 has 12 divisors (see below), whose sum is σ = 132880384. Its totient is φ = 52567920.

The previous prime is 85422979. The next prime is 85423007. The reversal of 85422987 is 78922458.

85422987 is a `hidden beast` number, since 8 + 542 + 29 + 87 = 666.

It is not a de Polignac number, because 85422987 - 2³ = 85422979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85422187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364939 + ... + 365172.

Almost surely, 2^85422987 is an apocalyptic number.

85422987 is a deficient number, since it is larger than the sum of its proper divisors (47457397).

85422987 is a wasteful number, since it uses less digits than its factorization.

85422987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730130 (or 730127 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 85422987 is about 9242.4556801750. The cubic root of 85422987 is about 440.4110947864.

The spelling of 85422987 in words is "eighty-five million, four hundred twenty-two thousand, nine hundred eighty-seven".