84591406 has 16 divisors (see below), whose sum is σ = 130523184. Its totient is φ = 41094144.

The previous prime is 84591391. The next prime is 84591433. The reversal of 84591406 is 60419548.

It is a happy number.

It is a congruent number.

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, 14446 + ... + 19438.

It is an arithmetic number, because the mean of its divisors is an integer number (8157699).

Almost surely, 2^84591406 is an apocalyptic number.

84591406 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

84591406 is a deficient number, since it is larger than the sum of its proper divisors (45931778).

84591406 is a wasteful number, since it uses less digits than its factorization.

84591406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 84591406 is about 9197.3586425669. The cubic root of 84591406 is about 438.9773183730.

The spelling of 84591406 in words is "eighty-four million, five hundred ninety-one thousand, four hundred six".