88665397 has 2 divisors, whose sum is σ = 88665398. Its totient is φ = 88665396.

The previous prime is 88665373. The next prime is 88665403. The reversal of 88665397 is 79356688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65950641 + 22714756 = 8121^2 + 4766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88665397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88665307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44332698 + 44332699.

It is an arithmetic number, because the mean of its divisors is an integer number (44332699).

Almost surely, 2^88665397 is an apocalyptic number.

It is an amenable number.

88665397 is a deficient number, since it is larger than the sum of its proper divisors (1).

88665397 is an equidigital number, since it uses as much as digits as its factorization.

88665397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 88665397 is about 9416.2305090732. The cubic root of 88665397 is about 445.9142873890.

The spelling of 88665397 in words is "eighty-eight million, six hundred sixty-five thousand, three hundred ninety-seven".