90481826 has 4 divisors (see below), whose sum is σ = 135722742. Its totient is φ = 45240912.

The previous prime is 90481823. The next prime is 90481861. The reversal of 90481826 is 62818409.

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

It can be written as a sum of positive squares in only one way, i.e., 74839801 + 15642025 = 8651^2 + 3955^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90481826.

It is not an unprimeable number, because it can be changed into a prime (90481823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22620455 + ... + 22620458.

Almost surely, 2^90481826 is an apocalyptic number.

90481826 is a deficient number, since it is larger than the sum of its proper divisors (45240916).

90481826 is a wasteful number, since it uses less digits than its factorization.

90481826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45240915.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 90481826 is about 9512.1935430268. The cubic root of 90481826 is about 448.9387766782.

The spelling of 90481826 in words is "ninety million, four hundred eighty-one thousand, eight hundred twenty-six".