40077047 has 2 divisors, whose sum is σ = 40077048. Its totient is φ = 40077046.

The previous prime is 40077019. The next prime is 40077053. The reversal of 40077047 is 74077004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40077047 - 2⁸ = 40076791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40077067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20038523 + 20038524.

It is an arithmetic number, because the mean of its divisors is an integer number (20038524).

Almost surely, 2^40077047 is an apocalyptic number.

40077047 is a deficient number, since it is larger than the sum of its proper divisors (1).

40077047 is an equidigital number, since it uses as much as digits as its factorization.

40077047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 40077047 is about 6330.6434901991. The cubic root of 40077047 is about 342.2146293636.

The spelling of 40077047 in words is "forty million, seventy-seven thousand, forty-seven".