90473806 has 16 divisors (see below), whose sum is σ = 142624944. Its totient is φ = 42989184.

The previous prime is 90473783. The next prime is 90473807. The reversal of 90473806 is 60837409.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90473807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11035 + ... + 17398.

It is an arithmetic number, because the mean of its divisors is an integer number (8914059).

Almost surely, 2^90473806 is an apocalyptic number.

90473806 is a deficient number, since it is larger than the sum of its proper divisors (52151138).

90473806 is a wasteful number, since it uses less digits than its factorization.

90473806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28515.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 90473806 is about 9511.7719695123. The cubic root of 90473806 is about 448.9255121530.

The spelling of 90473806 in words is "ninety million, four hundred seventy-three thousand, eight hundred six".