88389647 has 4 divisors (see below), whose sum is σ = 93589056. Its totient is φ = 83190240.

The previous prime is 88389619. The next prime is 88389659. The reversal of 88389647 is 74698388.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88389647 - 2²⁰ = 87341071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88389607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2599679 + ... + 2599712.

It is an arithmetic number, because the mean of its divisors is an integer number (23397264).

Almost surely, 2^88389647 is an apocalyptic number.

88389647 is a deficient number, since it is larger than the sum of its proper divisors (5199409).

88389647 is a wasteful number, since it uses less digits than its factorization.

88389647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199408.

The product of its digits is 2322432, while the sum is 53.

The square root of 88389647 is about 9401.5768358292. The cubic root of 88389647 is about 445.4515418335.

The spelling of 88389647 in words is "eighty-eight million, three hundred eighty-nine thousand, six hundred forty-seven".