34726721 has 2 divisors, whose sum is σ = 34726722. Its totient is φ = 34726720.

The previous prime is 34726709. The next prime is 34726777. The reversal of 34726721 is 12762743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33189121 + 1537600 = 5761^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 34726721 - 2¹⁰ = 34725697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34726421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17363360 + 17363361.

It is an arithmetic number, because the mean of its divisors is an integer number (17363361).

Almost surely, 2^34726721 is an apocalyptic number.

It is an amenable number.

34726721 is a deficient number, since it is larger than the sum of its proper divisors (1).

34726721 is an equidigital number, since it uses as much as digits as its factorization.

34726721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 32.

The square root of 34726721 is about 5892.9382314767. The cubic root of 34726721 is about 326.2530591846.

The spelling of 34726721 in words is "thirty-four million, seven hundred twenty-six thousand, seven hundred twenty-one".