86400406 has 4 divisors (see below), whose sum is σ = 129600612. Its totient is φ = 43200202.

The previous prime is 86400403. The next prime is 86400421. The reversal of 86400406 is 60400468.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86400403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21600100 + ... + 21600103.

It is an arithmetic number, because the mean of its divisors is an integer number (32400153).

Almost surely, 2^86400406 is an apocalyptic number.

86400406 is a deficient number, since it is larger than the sum of its proper divisors (43200206).

86400406 is a wasteful number, since it uses less digits than its factorization.

86400406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43200205.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 86400406 is about 9295.1818701949. The cubic root of 86400406 is about 442.0844722972.

The spelling of 86400406 in words is "eighty-six million, four hundred thousand, four hundred six".