84632891 has 16 divisors (see below), whose sum is σ = 99244224. Its totient is φ = 70671744.

The previous prime is 84632887. The next prime is 84632903. The reversal of 84632891 is 19823648.

It is a cyclic number.

It is not a de Polignac number, because 84632891 - 2² = 84632887 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84602891) 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, 57521 + ... + 58973.

It is an arithmetic number, because the mean of its divisors is an integer number (6202764).

Almost surely, 2^84632891 is an apocalyptic number.

84632891 is a deficient number, since it is larger than the sum of its proper divisors (14611333).

84632891 is a wasteful number, since it uses less digits than its factorization.

84632891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670.

The product of its digits is 82944, while the sum is 41.

The square root of 84632891 is about 9199.6136331913. The cubic root of 84632891 is about 439.0490671819.

The spelling of 84632891 in words is "eighty-four million, six hundred thirty-two thousand, eight hundred ninety-one".