84468931 has 4 divisors (see below), whose sum is σ = 85113864. Its totient is φ = 83824000.

The previous prime is 84468919. The next prime is 84468973. The reversal of 84468931 is 13986448.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84468931 - 2¹⁷ = 84337859 is a prime.

It is a super-2 number, since 2×84468931² = 14270000608565522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84468911) 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 3 ways as a sum of consecutive naturals, for example, 322270 + ... + 322531.

It is an arithmetic number, because the mean of its divisors is an integer number (21278466).

Almost surely, 2^84468931 is an apocalyptic number.

84468931 is a deficient number, since it is larger than the sum of its proper divisors (644933).

84468931 is a wasteful number, since it uses less digits than its factorization.

84468931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644932.

The product of its digits is 165888, while the sum is 43.

The square root of 84468931 is about 9190.6980692437. The cubic root of 84468931 is about 438.7653594296.

The spelling of 84468931 in words is "eighty-four million, four hundred sixty-eight thousand, nine hundred thirty-one".