90003431 has 8 divisors (see below), whose sum is σ = 102919200. Its totient is φ = 77102208.

The previous prime is 90003413. The next prime is 90003461. The reversal of 90003431 is 13430009.

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

It is a cyclic number.

It is not a de Polignac number, because 90003431 - 2⁶ = 90003367 is a prime.

It is a super-2 number, since 2×90003431² = 16201235183543522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90003401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19235 + ... + 23451.

It is an arithmetic number, because the mean of its divisors is an integer number (12864900).

Almost surely, 2^90003431 is an apocalyptic number.

90003431 is a deficient number, since it is larger than the sum of its proper divisors (12915769).

90003431 is a wasteful number, since it uses less digits than its factorization.

90003431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7273.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 90003431 is about 9487.0138083593. The cubic root of 90003431 is about 448.1461692869.

The spelling of 90003431 in words is "ninety million, three thousand, four hundred thirty-one".