90516406 has 4 divisors (see below), whose sum is σ = 135774612. Its totient is φ = 45258202.

The previous prime is 90516403. The next prime is 90516427. The reversal of 90516406 is 60461509.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90516401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22629100 + ... + 22629103.

It is an arithmetic number, because the mean of its divisors is an integer number (33943653).

Almost surely, 2^90516406 is an apocalyptic number.

90516406 is a deficient number, since it is larger than the sum of its proper divisors (45258206).

90516406 is a wasteful number, since it uses less digits than its factorization.

90516406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45258205.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 90516406 is about 9514.0110363611. The cubic root of 90516406 is about 448.9959606318.

The spelling of 90516406 in words is "ninety million, five hundred sixteen thousand, four hundred six".