88691441 has 2 divisors, whose sum is σ = 88691442. Its totient is φ = 88691440.

The previous prime is 88691417. The next prime is 88691443. The reversal of 88691441 is 14419688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53348416 + 35343025 = 7304^2 + 5945^2 .

It is a cyclic number.

It is not a de Polignac number, because 88691441 - 2¹⁴ = 88675057 is a prime.

Together with 88691443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88691443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44345720 + 44345721.

It is an arithmetic number, because the mean of its divisors is an integer number (44345721).

Almost surely, 2^88691441 is an apocalyptic number.

It is an amenable number.

88691441 is a deficient number, since it is larger than the sum of its proper divisors (1).

88691441 is an equidigital number, since it uses as much as digits as its factorization.

88691441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 41.

The square root of 88691441 is about 9417.6133388455. The cubic root of 88691441 is about 445.9579431074.

It can be divided in two parts, 8 and 8691441, that multiplied together give a triangular number (69531528 = T₁₁₇₉₂).

The spelling of 88691441 in words is "eighty-eight million, six hundred ninety-one thousand, four hundred forty-one".