88890647 has 4 divisors (see below), whose sum is σ = 88919040. Its totient is φ = 88862256.

The previous prime is 88890631. The next prime is 88890661. The reversal of 88890647 is 74609888.

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 88890647 - 2⁴ = 88890631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88890595 and 88890604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88890667) 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, 8822 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (22229760).

Almost surely, 2^88890647 is an apocalyptic number.

88890647 is a deficient number, since it is larger than the sum of its proper divisors (28393).

88890647 is a wasteful number, since it uses less digits than its factorization.

88890647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28392.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 88890647 is about 9428.1836532813. The cubic root of 88890647 is about 446.2915757125.

The spelling of 88890647 in words is "eighty-eight million, eight hundred ninety thousand, six hundred forty-seven".