88691417 has 2 divisors, whose sum is σ = 88691418. Its totient is φ = 88691416.

The previous prime is 88691401. The next prime is 88691441. The reversal of 88691417 is 71419688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56190016 + 32501401 = 7496^2 + 5701^2 .

It is a cyclic number.

It is not a de Polignac number, because 88691417 - 2⁴ = 88691401 is a prime.

It is not a weakly prime, because it can be changed into another prime (88691497) 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, 44345708 + 44345709.

It is an arithmetic number, because the mean of its divisors is an integer number (44345709).

Almost surely, 2^88691417 is an apocalyptic number.

It is an amenable number.

88691417 is a deficient number, since it is larger than the sum of its proper divisors (1).

88691417 is an equidigital number, since it uses as much as digits as its factorization.

88691417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 44.

The square root of 88691417 is about 9417.6120646372. The cubic root of 88691417 is about 445.9579028818.

The spelling of 88691417 in words is "eighty-eight million, six hundred ninety-one thousand, four hundred seventeen".