90047874 has 32 divisors (see below), whose sum is σ = 206309376. Its totient is φ = 25667280.

The previous prime is 90047869. The next prime is 90047879. The reversal of 90047874 is 47874009.

It is an interprime number because it is at equal distance from previous prime (90047869) and next prime (90047879).

It is a super-2 number, since 2×90047874² = 16217239223839752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90047879) 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 in 15 ways as a sum of consecutive naturals, for example, 17319 + ... + 21909.

It is an arithmetic number, because the mean of its divisors is an integer number (6447168).

Almost surely, 2^90047874 is an apocalyptic number.

90047874 is an abundant number, since it is smaller than the sum of its proper divisors (116261502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90047874 is a wasteful number, since it uses less digits than its factorization.

90047874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5070.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 90047874 is about 9489.3558263983. The cubic root of 90047874 is about 448.2199208562.

The spelling of 90047874 in words is "ninety million, forty-seven thousand, eight hundred seventy-four".