86974533 has 32 divisors (see below), whose sum is σ = 143625600. Its totient is φ = 51694848.

The previous prime is 86974529. The next prime is 86974543. The reversal of 86974533 is 33547968.

It is not a de Polignac number, because 86974533 - 2² = 86974529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86974543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3735 + ... + 13707.

It is an arithmetic number, because the mean of its divisors is an integer number (4488300).

Almost surely, 2^86974533 is an apocalyptic number.

It is an amenable number.

86974533 is a deficient number, since it is larger than the sum of its proper divisors (56651067).

86974533 is a wasteful number, since it uses less digits than its factorization.

86974533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10018 (or 10012 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 86974533 is about 9326.0137786731. The cubic root of 86974533 is about 443.0615221301.

The spelling of 86974533 in words is "eighty-six million, nine hundred seventy-four thousand, five hundred thirty-three".