40687067 has 2 divisors, whose sum is σ = 40687068. Its totient is φ = 40687066.

The previous prime is 40687039. The next prime is 40687079. The reversal of 40687067 is 76078604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40687067 - 2²² = 36492763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40687067.

It is not a weakly prime, because it can be changed into another prime (40687027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20343533 + 20343534.

It is an arithmetic number, because the mean of its divisors is an integer number (20343534).

Almost surely, 2^40687067 is an apocalyptic number.

40687067 is a deficient number, since it is larger than the sum of its proper divisors (1).

40687067 is an equidigital number, since it uses as much as digits as its factorization.

40687067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 40687067 is about 6378.6414697802. The cubic root of 40687067 is about 343.9421972240.

The spelling of 40687067 in words is "forty million, six hundred eighty-seven thousand, sixty-seven".