920337221 has 8 divisors (see below), whose sum is σ = 941741184. Its totient is φ = 899009280.

The previous prime is 920337217. The next prime is 920337233. The reversal of 920337221 is 122733029.

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 920337221 - 2² = 920337217 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 (920337241) 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, 5861 + ... + 43301.

It is an arithmetic number, because the mean of its divisors is an integer number (117717648).

Almost surely, 2^920337221 is an apocalyptic number.

It is an amenable number.

920337221 is a deficient number, since it is larger than the sum of its proper divisors (21403963).

920337221 is a wasteful number, since it uses less digits than its factorization.

920337221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38011.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 920337221 is about 30337.0601904667. The cubic root of 920337221 is about 972.7076440855.

The spelling of 920337221 in words is "nine hundred twenty million, three hundred thirty-seven thousand, two hundred twenty-one".