415242647 has 2 divisors, whose sum is σ = 415242648. Its totient is φ = 415242646.

The previous prime is 415242599. The next prime is 415242671. The reversal of 415242647 is 746242514.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 415242647 - 2²⁰ = 414194071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415242847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207621323 + 207621324.

It is an arithmetic number, because the mean of its divisors is an integer number (207621324).

Almost surely, 2^415242647 is an apocalyptic number.

415242647 is a deficient number, since it is larger than the sum of its proper divisors (1).

415242647 is an equidigital number, since it uses as much as digits as its factorization.

415242647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 35.

The square root of 415242647 is about 20377.5034535637. The cubic root of 415242647 is about 746.0489387786.

The spelling of 415242647 in words is "four hundred fifteen million, two hundred forty-two thousand, six hundred forty-seven".