86922473 has 16 divisors (see below), whose sum is σ = 100958400. Its totient is φ = 74004480.

The previous prime is 86922469. The next prime is 86922503. The reversal of 86922473 is 37422968.

It is a happy number.

It is not a de Polignac number, because 86922473 - 2² = 86922469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86922473.

It is not an unprimeable number, because it can be changed into a prime (86922443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16265 + ... + 20937.

It is an arithmetic number, because the mean of its divisors is an integer number (6309900).

Almost surely, 2^86922473 is an apocalyptic number.

It is an amenable number.

86922473 is a deficient number, since it is larger than the sum of its proper divisors (14035927).

86922473 is a wasteful number, since it uses less digits than its factorization.

86922473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792.

The product of its digits is 145152, while the sum is 41.

The square root of 86922473 is about 9323.2222434092. Note that the first 4 decimals coincide. The cubic root of 86922473 is about 442.9731039625.

The spelling of 86922473 in words is "eighty-six million, nine hundred twenty-two thousand, four hundred seventy-three".