90864406 has 8 divisors (see below), whose sum is σ = 136827720. Its totient is φ = 45255168.

The previous prime is 90864391. The next prime is 90864409. The reversal of 90864406 is 60446809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90864409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87876 + ... + 88903.

It is an arithmetic number, because the mean of its divisors is an integer number (17103465).

Almost surely, 2^90864406 is an apocalyptic number.

90864406 is a deficient number, since it is larger than the sum of its proper divisors (45963314).

90864406 is a wasteful number, since it uses less digits than its factorization.

90864406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177038.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 90864406 is about 9532.2823080310. The cubic root of 90864406 is about 449.5706291260.

The spelling of 90864406 in words is "ninety million, eight hundred sixty-four thousand, four hundred six".