90294499 has 4 divisors (see below), whose sum is σ = 90348336. Its totient is φ = 90240664.

The previous prime is 90294469. The next prime is 90294509. The reversal of 90294499 is 99449209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99449209 = 31 ⋅3208039.

It is a cyclic number.

It is not a de Polignac number, because 90294499 - 2¹³ = 90286307 is a prime.

It is a super-2 number, since 2×90294499² = 16306193099322002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90294419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24319 + ... + 27784.

It is an arithmetic number, because the mean of its divisors is an integer number (22587084).

Almost surely, 2^90294499 is an apocalyptic number.

90294499 is a deficient number, since it is larger than the sum of its proper divisors (53837).

90294499 is a wasteful number, since it uses less digits than its factorization.

90294499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53836.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 90294499 is about 9502.3417640074. The cubic root of 90294499 is about 448.6287458803.

The spelling of 90294499 in words is "ninety million, two hundred ninety-four thousand, four hundred ninety-nine".