90947650 has 24 divisors (see below), whose sum is σ = 169430004. Its totient is φ = 36321600.

The previous prime is 90947641. The next prime is 90947669. The reversal of 90947650 is 5674909.

It can be written as a sum of positive squares in 6 ways, for example, as 46498761 + 44448889 = 6819^2 + 6667^2 .

It is an alternating number because its digits alternate between odd and even.

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 11 ways as a sum of consecutive naturals, for example, 46084 + ... + 48016.

Almost surely, 2^90947650 is an apocalyptic number.

90947650 is a deficient number, since it is larger than the sum of its proper divisors (78482354).

90947650 is a wasteful number, since it uses less digits than its factorization.

90947650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886 (or 2881 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 90947650 is about 9536.6477338738. The cubic root of 90947650 is about 449.7078762485.

The spelling of 90947650 in words is "ninety million, nine hundred forty-seven thousand, six hundred fifty".