34723391 has 2 divisors, whose sum is σ = 34723392. Its totient is φ = 34723390.

The previous prime is 34723373. The next prime is 34723477. The reversal of 34723391 is 19332743.

34723391 is nontrivially palindromic in base 12.

It is a weak prime.

It is an emirp because it is prime and its reverse (19332743) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34723391 - 2¹⁴ = 34707007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34723301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17361695 + 17361696.

It is an arithmetic number, because the mean of its divisors is an integer number (17361696).

Almost surely, 2^34723391 is an apocalyptic number.

34723391 is a deficient number, since it is larger than the sum of its proper divisors (1).

34723391 is an equidigital number, since it uses as much as digits as its factorization.

34723391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 32.

The square root of 34723391 is about 5892.6556831364. The cubic root of 34723391 is about 326.2426305446.

The spelling of 34723391 in words is "thirty-four million, seven hundred twenty-three thousand, three hundred ninety-one".