88643497 has 4 divisors (see below), whose sum is σ = 89281360. Its totient is φ = 88005636.

The previous prime is 88643473. The next prime is 88643537. The reversal of 88643497 is 79434688.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88643497 - 2¹⁵ = 88610729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88643497.

It is not an unprimeable number, because it can be changed into a prime (88643407) 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 in 3 ways as a sum of consecutive naturals, for example, 318723 + ... + 319000.

It is an arithmetic number, because the mean of its divisors is an integer number (22320340).

Almost surely, 2^88643497 is an apocalyptic number.

It is an amenable number.

88643497 is a deficient number, since it is larger than the sum of its proper divisors (637863).

88643497 is a wasteful number, since it uses less digits than its factorization.

88643497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637862.

The product of its digits is 1161216, while the sum is 49.

The square root of 88643497 is about 9415.0675515367. The cubic root of 88643497 is about 445.8775713481.

The spelling of 88643497 in words is "eighty-eight million, six hundred forty-three thousand, four hundred ninety-seven".