93108981 has 16 divisors (see below), whose sum is σ = 142390784. Its totient is φ = 53013744.

The previous prime is 93108959. The next prime is 93109031. The reversal of 93108981 is 18980139.

It is a happy number.

It is not a de Polignac number, because 93108981 - 2¹⁵ = 93076213 is a prime.

It is a super-2 number, since 2×93108981² = 17338564685716722, 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 (93108901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1891 + ... + 13776.

It is an arithmetic number, because the mean of its divisors is an integer number (8899424).

Almost surely, 2^93108981 is an apocalyptic number.

It is an amenable number.

93108981 is a deficient number, since it is larger than the sum of its proper divisors (49281803).

93108981 is a wasteful number, since it uses less digits than its factorization.

93108981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15960.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 93108981 is about 9649.2995082545. The cubic root of 93108981 is about 453.2423937515.

The spelling of 93108981 in words is "ninety-three million, one hundred eight thousand, nine hundred eighty-one".