34540393 has 2 divisors, whose sum is σ = 34540394. Its totient is φ = 34540392.

The previous prime is 34540369. The next prime is 34540397. The reversal of 34540393 is 39304543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28174864 + 6365529 = 5308^2 + 2523^2 .

It is an emirp because it is prime and its reverse (39304543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34540393 - 2¹⁷ = 34409321 is a prime.

It is not a weakly prime, because it can be changed into another prime (34540397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17270196 + 17270197.

It is an arithmetic number, because the mean of its divisors is an integer number (17270197).

Almost surely, 2^34540393 is an apocalyptic number.

It is an amenable number.

34540393 is a deficient number, since it is larger than the sum of its proper divisors (1).

34540393 is an equidigital number, since it uses as much as digits as its factorization.

34540393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 34540393 is about 5877.1075368756. The cubic root of 34540393 is about 325.6685032806.

The spelling of 34540393 in words is "thirty-four million, five hundred forty thousand, three hundred ninety-three".