88203221 has 4 divisors (see below), whose sum is σ = 88731552. Its totient is φ = 87674892.

The previous prime is 88203211. The next prime is 88203251. The reversal of 88203221 is 12230288.

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 88203221 - 2²⁶ = 21094357 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 (88203211) 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, 263915 + ... + 264248.

It is an arithmetic number, because the mean of its divisors is an integer number (22182888).

Almost surely, 2^88203221 is an apocalyptic number.

It is an amenable number.

88203221 is a deficient number, since it is larger than the sum of its proper divisors (528331).

88203221 is a wasteful number, since it uses less digits than its factorization.

88203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528330.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 88203221 is about 9391.6569890515. The cubic root of 88203221 is about 445.1381484138.

The spelling of 88203221 in words is "eighty-eight million, two hundred three thousand, two hundred twenty-one".