88581761 has 2 divisors, whose sum is σ = 88581762. Its totient is φ = 88581760.

The previous prime is 88581749. The next prime is 88581797. The reversal of 88581761 is 16718588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80281600 + 8300161 = 8960^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 88581761 - 2¹⁴ = 88565377 is a prime.

It is a super-2 number, since 2×88581761² = 15693456763722242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88581721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44290880 + 44290881.

It is an arithmetic number, because the mean of its divisors is an integer number (44290881).

Almost surely, 2^88581761 is an apocalyptic number.

It is an amenable number.

88581761 is a deficient number, since it is larger than the sum of its proper divisors (1).

88581761 is an equidigital number, since it uses as much as digits as its factorization.

88581761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 44.

The square root of 88581761 is about 9411.7884060363. The cubic root of 88581761 is about 445.7740364339.

The spelling of 88581761 in words is "eighty-eight million, five hundred eighty-one thousand, seven hundred sixty-one".