40794647 has 2 divisors, whose sum is σ = 40794648. Its totient is φ = 40794646.

The previous prime is 40794643. The next prime is 40794661. The reversal of 40794647 is 74649704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40794647 - 2² = 40794643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40794641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20397323 + 20397324.

It is an arithmetic number, because the mean of its divisors is an integer number (20397324).

Almost surely, 2^40794647 is an apocalyptic number.

40794647 is a deficient number, since it is larger than the sum of its proper divisors (1).

40794647 is an equidigital number, since it uses as much as digits as its factorization.

40794647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 40794647 is about 6387.0687329948. The cubic root of 40794647 is about 344.2450677315.

The spelling of 40794647 in words is "forty million, seven hundred ninety-four thousand, six hundred forty-seven".