34633721 has 2 divisors, whose sum is σ = 34633722. Its totient is φ = 34633720.

The previous prime is 34633693. The next prime is 34633741. The reversal of 34633721 is 12733643.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24393721 + 10240000 = 4939^2 + 3200^2 .

It is a cyclic number.

It is not a de Polignac number, because 34633721 - 2¹⁴ = 34617337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34633741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17316860 + 17316861.

It is an arithmetic number, because the mean of its divisors is an integer number (17316861).

Almost surely, 2^34633721 is an apocalyptic number.

It is an amenable number.

34633721 is a deficient number, since it is larger than the sum of its proper divisors (1).

34633721 is an equidigital number, since it uses as much as digits as its factorization.

34633721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 29.

The square root of 34633721 is about 5885.0421408857. The cubic root of 34633721 is about 325.9615578141.

The spelling of 34633721 in words is "thirty-four million, six hundred thirty-three thousand, seven hundred twenty-one".