32923721 has 2 divisors, whose sum is σ = 32923722. Its totient is φ = 32923720.

The previous prime is 32923699. The next prime is 32923727. The reversal of 32923721 is 12732923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18966025 + 13957696 = 4355^2 + 3736^2 .

It is a cyclic number.

It is not a de Polignac number, because 32923721 - 2²² = 28729417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32923727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16461860 + 16461861.

It is an arithmetic number, because the mean of its divisors is an integer number (16461861).

Almost surely, 2^32923721 is an apocalyptic number.

It is an amenable number.

32923721 is a deficient number, since it is larger than the sum of its proper divisors (1).

32923721 is an equidigital number, since it uses as much as digits as its factorization.

32923721 is an evil number, because the sum of its binary digits is even.

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

The square root of 32923721 is about 5737.9195707155. The cubic root of 32923721 is about 320.5061034352.

The spelling of 32923721 in words is "thirty-two million, nine hundred twenty-three thousand, seven hundred twenty-one".