40294847 has 2 divisors, whose sum is σ = 40294848. Its totient is φ = 40294846.

The previous prime is 40294799. The next prime is 40294853. The reversal of 40294847 is 74849204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40294847 - 2¹⁶ = 40229311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40294847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40294447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20147423 + 20147424.

It is an arithmetic number, because the mean of its divisors is an integer number (20147424).

Almost surely, 2^40294847 is an apocalyptic number.

40294847 is a deficient number, since it is larger than the sum of its proper divisors (1).

40294847 is an equidigital number, since it uses as much as digits as its factorization.

40294847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 40294847 is about 6347.8222249839. The cubic root of 40294847 is about 342.8334352076.

The spelling of 40294847 in words is "forty million, two hundred ninety-four thousand, eight hundred forty-seven".