88691497 has 2 divisors, whose sum is σ = 88691498. Its totient is φ = 88691496.

The previous prime is 88691461. The next prime is 88691501. The reversal of 88691497 is 79419688.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 20529961 = 8256^2 + 4531^2 .

It is a cyclic number.

It is not a de Polignac number, because 88691497 - 2²³ = 80302889 is a prime.

It is not a weakly prime, because it can be changed into another prime (88691417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44345748 + 44345749.

It is an arithmetic number, because the mean of its divisors is an integer number (44345749).

Almost surely, 2^88691497 is an apocalyptic number.

It is an amenable number.

88691497 is a deficient number, since it is larger than the sum of its proper divisors (1).

88691497 is an equidigital number, since it uses as much as digits as its factorization.

88691497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 88691497 is about 9417.6163119974. The cubic root of 88691497 is about 445.9580369670.

The spelling of 88691497 in words is "eighty-eight million, six hundred ninety-one thousand, four hundred ninety-seven".