34420247 has 2 divisors, whose sum is σ = 34420248. Its totient is φ = 34420246.

The previous prime is 34420193. The next prime is 34420271. The reversal of 34420247 is 74202443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34420247 - 2²⁰ = 33371671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34420277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17210123 + 17210124.

It is an arithmetic number, because the mean of its divisors is an integer number (17210124).

Almost surely, 2^34420247 is an apocalyptic number.

34420247 is a deficient number, since it is larger than the sum of its proper divisors (1).

34420247 is an equidigital number, since it uses as much as digits as its factorization.

34420247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 34420247 is about 5866.8771079681. The cubic root of 34420247 is about 325.2904606463.

The spelling of 34420247 in words is "thirty-four million, four hundred twenty thousand, two hundred forty-seven".