90481814 has 4 divisors (see below), whose sum is σ = 135722724. Its totient is φ = 45240906.

The previous prime is 90481799. The next prime is 90481817. The reversal of 90481814 is 41818409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41818409 = 617 ⋅67777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90481817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22620452 + ... + 22620455.

It is an arithmetic number, because the mean of its divisors is an integer number (33930681).

Almost surely, 2^90481814 is an apocalyptic number.

90481814 is a deficient number, since it is larger than the sum of its proper divisors (45240910).

90481814 is a wasteful number, since it uses less digits than its factorization.

90481814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45240909.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 90481814 is about 9512.1929122574. The cubic root of 90481814 is about 448.9387568316.

The spelling of 90481814 in words is "ninety million, four hundred eighty-one thousand, eight hundred fourteen".