88028989 has 8 divisors (see below), whose sum is σ = 89582720. Its totient is φ = 86486400.

The previous prime is 88028977. The next prime is 88028999. The reversal of 88028989 is 98982088.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88028989 - 2⁹ = 88028477 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 (88028909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14029 + ... + 19309.

It is an arithmetic number, because the mean of its divisors is an integer number (11197840).

Almost surely, 2^88028989 is an apocalyptic number.

It is an amenable number.

88028989 is a deficient number, since it is larger than the sum of its proper divisors (1553731).

88028989 is a wasteful number, since it uses less digits than its factorization.

88028989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571.

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 88028989 is about 9382.3765113110. The cubic root of 88028989 is about 444.8448543872.

The spelling of 88028989 in words is "eighty-eight million, twenty-eight thousand, nine hundred eighty-nine".