40413647 has 2 divisors, whose sum is σ = 40413648. Its totient is φ = 40413646.

The previous prime is 40413629. The next prime is 40413649. The reversal of 40413647 is 74631404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40413647 - 2⁸ = 40413391 is a prime.

Together with 40413649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40413649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20206823 + 20206824.

It is an arithmetic number, because the mean of its divisors is an integer number (20206824).

Almost surely, 2^40413647 is an apocalyptic number.

40413647 is a deficient number, since it is larger than the sum of its proper divisors (1).

40413647 is an equidigital number, since it uses as much as digits as its factorization.

40413647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40413647 is about 6357.1728779387. The cubic root of 40413647 is about 343.1700262300.

The spelling of 40413647 in words is "forty million, four hundred thirteen thousand, six hundred forty-seven".