40164679 has 2 divisors, whose sum is σ = 40164680. Its totient is φ = 40164678.

The previous prime is 40164661. The next prime is 40164749. The reversal of 40164679 is 97646104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40164679 - 2⁹ = 40164167 is a prime.

It is a super-2 number, since 2×40164679² = 3226402878346082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40164079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20082339 + 20082340.

It is an arithmetic number, because the mean of its divisors is an integer number (20082340).

Almost surely, 2^40164679 is an apocalyptic number.

40164679 is a deficient number, since it is larger than the sum of its proper divisors (1).

40164679 is an equidigital number, since it uses as much as digits as its factorization.

40164679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 40164679 is about 6337.5609661762. The cubic root of 40164679 is about 342.4638752813.

The spelling of 40164679 in words is "forty million, one hundred sixty-four thousand, six hundred seventy-nine".