88955981 has 2 divisors, whose sum is σ = 88955982. Its totient is φ = 88955980.

The previous prime is 88955959. The next prime is 88955983. The reversal of 88955981 is 18955988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69989956 + 18966025 = 8366^2 + 4355^2 .

It is a cyclic number.

It is not a de Polignac number, because 88955981 - 2²⁶ = 21847117 is a prime.

It is a super-2 number, since 2×88955981² = 15826333111344722, which contains 22 as substring.

Together with 88955983, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88955983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44477990 + 44477991.

It is an arithmetic number, because the mean of its divisors is an integer number (44477991).

Almost surely, 2^88955981 is an apocalyptic number.

It is an amenable number.

88955981 is a deficient number, since it is larger than the sum of its proper divisors (1).

88955981 is an equidigital number, since it uses as much as digits as its factorization.

88955981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 53.

The square root of 88955981 is about 9431.6478411781. The cubic root of 88955981 is about 446.4008893244.

The spelling of 88955981 in words is "eighty-eight million, nine hundred fifty-five thousand, nine hundred eighty-one".