93088981 has 4 divisors (see below), whose sum is σ = 97136352. Its totient is φ = 89041612.

The previous prime is 93088979. The next prime is 93088987. The reversal of 93088981 is 18988039.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 93088981 - 2¹ = 93088979 is a prime.

It is a super-2 number, since 2×93088981² = 17331116767236722, 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 (93088987) 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, 2023651 + ... + 2023696.

It is an arithmetic number, because the mean of its divisors is an integer number (24284088).

Almost surely, 2^93088981 is an apocalyptic number.

It is an amenable number.

93088981 is a deficient number, since it is larger than the sum of its proper divisors (4047371).

93088981 is a wasteful number, since it uses less digits than its factorization.

93088981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047370.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 93088981 is about 9648.2631079381. The cubic root of 93088981 is about 453.2099389625.

The spelling of 93088981 in words is "ninety-three million, eighty-eight thousand, nine hundred eighty-one".