42369247 has 2 divisors, whose sum is σ = 42369248. Its totient is φ = 42369246.

The previous prime is 42369227. The next prime is 42369293. The reversal of 42369247 is 74296324.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42369247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42369227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21184623 + 21184624.

It is an arithmetic number, because the mean of its divisors is an integer number (21184624).

Almost surely, 2^42369247 is an apocalyptic number.

42369247 is a deficient number, since it is larger than the sum of its proper divisors (1).

42369247 is an equidigital number, since it uses as much as digits as its factorization.

42369247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 42369247 is about 6509.1663828788. The cubic root of 42369247 is about 348.6183544101.

The spelling of 42369247 in words is "forty-two million, three hundred sixty-nine thousand, two hundred forty-seven".