90726490 has 32 divisors (see below), whose sum is σ = 170989056. Its totient is φ = 34594560.

The previous prime is 90726473. The next prime is 90726521. The reversal of 90726490 is 9462709.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 99135 + ... + 100045.

It is an arithmetic number, because the mean of its divisors is an integer number (5343408).

Almost surely, 2^90726490 is an apocalyptic number.

90726490 is a deficient number, since it is larger than the sum of its proper divisors (80262566).

90726490 is a wasteful number, since it uses less digits than its factorization.

90726490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 90726490 is about 9525.0454067159. The cubic root of 90726490 is about 449.3430578766.

The spelling of 90726490 in words is "ninety million, seven hundred twenty-six thousand, four hundred ninety".