90456994 has 4 divisors (see below), whose sum is σ = 135685494. Its totient is φ = 45228496.

The previous prime is 90456973. The next prime is 90457007. The reversal of 90456994 is 49965409.

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., 70341769 + 20115225 = 8387^2 + 4485^2 .

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 as a sum of consecutive naturals, namely, 22614247 + ... + 22614250.

Almost surely, 2^90456994 is an apocalyptic number.

90456994 is a deficient number, since it is larger than the sum of its proper divisors (45228500).

90456994 is a wasteful number, since it uses less digits than its factorization.

90456994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45228499.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 90456994 is about 9510.8881814476. Note that the first 3 decimals coincide. The cubic root of 90456994 is about 448.8977037239.

The spelling of 90456994 in words is "ninety million, four hundred fifty-six thousand, nine hundred ninety-four".