40673663 has 2 divisors, whose sum is σ = 40673664. Its totient is φ = 40673662.

The previous prime is 40673621. The next prime is 40673671. The reversal of 40673663 is 36637604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40673663 - 2¹² = 40669567 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 (40673063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20336831 + 20336832.

It is an arithmetic number, because the mean of its divisors is an integer number (20336832).

Almost surely, 2^40673663 is an apocalyptic number.

40673663 is a deficient number, since it is larger than the sum of its proper divisors (1).

40673663 is an equidigital number, since it uses as much as digits as its factorization.

40673663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 40673663 is about 6377.5906892807. The cubic root of 40673663 is about 343.9044234882.

The spelling of 40673663 in words is "forty million, six hundred seventy-three thousand, six hundred sixty-three".