34724321 has 2 divisors, whose sum is σ = 34724322. Its totient is φ = 34724320.

The previous prime is 34724317. The next prime is 34724341. The reversal of 34724321 is 12342743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33223696 + 1500625 = 5764^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 34724321 - 2² = 34724317 is a prime.

It is a super-2 number, since 2×34724321² = 2411556937822082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34724341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17362160 + 17362161.

It is an arithmetic number, because the mean of its divisors is an integer number (17362161).

Almost surely, 2^34724321 is an apocalyptic number.

It is an amenable number.

34724321 is a deficient number, since it is larger than the sum of its proper divisors (1).

34724321 is an equidigital number, since it uses as much as digits as its factorization.

34724321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 26.

The square root of 34724321 is about 5892.7345943967. The cubic root of 34724321 is about 326.2455431147.

The spelling of 34724321 in words is "thirty-four million, seven hundred twenty-four thousand, three hundred twenty-one".