88641919 has 2 divisors, whose sum is σ = 88641920. Its totient is φ = 88641918.

The previous prime is 88641907. The next prime is 88641937. The reversal of 88641919 is 91914688.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88641919 - 2⁵ = 88641887 is a prime.

It is a super-2 number, since 2×88641919² = 15714779608005122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88641979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44320959 + 44320960.

It is an arithmetic number, because the mean of its divisors is an integer number (44320960).

Almost surely, 2^88641919 is an apocalyptic number.

88641919 is a deficient number, since it is larger than the sum of its proper divisors (1).

88641919 is an equidigital number, since it uses as much as digits as its factorization.

88641919 is an evil number, because the sum of its binary digits is even.

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

The square root of 88641919 is about 9414.9837493221. The cubic root of 88641919 is about 445.8749255478.

The spelling of 88641919 in words is "eighty-eight million, six hundred forty-one thousand, nine hundred nineteen".