88981091 has 2 divisors, whose sum is σ = 88981092. Its totient is φ = 88981090.

The previous prime is 88981073. The next prime is 88981103. The reversal of 88981091 is 19018988.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88981091 - 2²² = 84786787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88981001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44490545 + 44490546.

It is an arithmetic number, because the mean of its divisors is an integer number (44490546).

Almost surely, 2^88981091 is an apocalyptic number.

88981091 is a deficient number, since it is larger than the sum of its proper divisors (1).

88981091 is an equidigital number, since it uses as much as digits as its factorization.

88981091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 44.

The square root of 88981091 is about 9432.9789038246. The cubic root of 88981091 is about 446.4428878938.

The spelling of 88981091 in words is "eighty-eight million, nine hundred eighty-one thousand, ninety-one".