90430874 has 8 divisors (see below), whose sum is σ = 140323860. Its totient is φ = 43656256.

The previous prime is 90430859. The next prime is 90430883. The reversal of 90430874 is 47803409.

It can be written as a sum of positive squares in 2 ways, for example, as 90345025 + 85849 = 9505^2 + 293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×90430874³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779519 + ... + 779634.

Almost surely, 2^90430874 is an apocalyptic number.

90430874 is a deficient number, since it is larger than the sum of its proper divisors (49892986).

90430874 is a wasteful number, since it uses less digits than its factorization.

90430874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559184.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 90430874 is about 9509.5149192795. The cubic root of 90430874 is about 448.8544922623.

The spelling of 90430874 in words is "ninety million, four hundred thirty thousand, eight hundred seventy-four".