93090431 has 4 divisors (see below), whose sum is σ = 106389072. Its totient is φ = 79791792.

The previous prime is 93090421. The next prime is 93090461. The reversal of 93090431 is 13409039.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 93090431 - 2¹⁰ = 93089407 is a prime.

It is a super-2 number, since 2×93090431² = 17331656687531522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 93090394 and 93090403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93090401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6649310 + ... + 6649323.

It is an arithmetic number, because the mean of its divisors is an integer number (26597268).

Almost surely, 2^93090431 is an apocalyptic number.

93090431 is a deficient number, since it is larger than the sum of its proper divisors (13298641).

93090431 is a wasteful number, since it uses less digits than its factorization.

93090431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13298640.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 93090431 is about 9648.3382507041. The cubic root of 93090431 is about 453.2122920910.

The spelling of 93090431 in words is "ninety-three million, ninety thousand, four hundred thirty-one".