40620863 has 2 divisors, whose sum is σ = 40620864. Its totient is φ = 40620862.

The previous prime is 40620859. The next prime is 40620869. The reversal of 40620863 is 36802604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40620863 - 2² = 40620859 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40620869) 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, 20310431 + 20310432.

It is an arithmetic number, because the mean of its divisors is an integer number (20310432).

Almost surely, 2^40620863 is an apocalyptic number.

40620863 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620863 is an equidigital number, since it uses as much as digits as its factorization.

40620863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 40620863 is about 6373.4498507480. The cubic root of 40620863 is about 343.7555473265.

The spelling of 40620863 in words is "forty million, six hundred twenty thousand, eight hundred sixty-three".