88668321 has 16 divisors (see below), whose sum is σ = 135805824. Its totient is φ = 50408064.

The previous prime is 88668263. The next prime is 88668329. The reversal of 88668321 is 12386688.

It is not a de Polignac number, because 88668321 - 2¹⁵ = 88635553 is a prime.

It is a super-2 number, since 2×88668321² = 15724142297918082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88668329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6580 + ... + 14853.

It is an arithmetic number, because the mean of its divisors is an integer number (8487864).

Almost surely, 2^88668321 is an apocalyptic number.

It is an amenable number.

88668321 is a deficient number, since it is larger than the sum of its proper divisors (47137503).

88668321 is a wasteful number, since it uses less digits than its factorization.

88668321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21640.

The product of its digits is 110592, while the sum is 42.

The square root of 88668321 is about 9416.3857716217. The cubic root of 88668321 is about 445.9191891097.

The spelling of 88668321 in words is "eighty-eight million, six hundred sixty-eight thousand, three hundred twenty-one".