34731409 has 2 divisors, whose sum is σ = 34731410. Its totient is φ = 34731408.

The previous prime is 34731407. The next prime is 34731443. The reversal of 34731409 is 90413743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27457600 + 7273809 = 5240^2 + 2697^2 .

It is a cyclic number.

It is not a de Polignac number, because 34731409 - 2¹ = 34731407 is a prime.

It is a super-2 number, since 2×34731409² = 2412541542250562, which contains 22 as substring.

Together with 34731407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (34731407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17365704 + 17365705.

It is an arithmetic number, because the mean of its divisors is an integer number (17365705).

Almost surely, 2^34731409 is an apocalyptic number.

It is an amenable number.

34731409 is a deficient number, since it is larger than the sum of its proper divisors (1).

34731409 is an equidigital number, since it uses as much as digits as its factorization.

34731409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 34731409 is about 5893.3359822769. The cubic root of 34731409 is about 326.2677395755.

The spelling of 34731409 in words is "thirty-four million, seven hundred thirty-one thousand, four hundred nine".