40864699 has 2 divisors, whose sum is σ = 40864700. Its totient is φ = 40864698.

The previous prime is 40864697. The next prime is 40864709. The reversal of 40864699 is 99646804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40864699 - 2¹ = 40864697 is a prime.

Together with 40864697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40864697) 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, 20432349 + 20432350.

It is an arithmetic number, because the mean of its divisors is an integer number (20432350).

Almost surely, 2^40864699 is an apocalyptic number.

40864699 is a deficient number, since it is larger than the sum of its proper divisors (1).

40864699 is an equidigital number, since it uses as much as digits as its factorization.

40864699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 40864699 is about 6392.5502735606. The cubic root of 40864699 is about 344.4419993313.

The spelling of 40864699 in words is "forty million, eight hundred sixty-four thousand, six hundred ninety-nine".