40697801 has 2 divisors, whose sum is σ = 40697802. Its totient is φ = 40697800.

The previous prime is 40697777. The next prime is 40697819. The reversal of 40697801 is 10879604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20939776 + 19758025 = 4576^2 + 4445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40697801 is a prime.

It is a super-2 number, since 2×40697801² = 3312622012471202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40697821) 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, 20348900 + 20348901.

It is an arithmetic number, because the mean of its divisors is an integer number (20348901).

Almost surely, 2^40697801 is an apocalyptic number.

It is an amenable number.

40697801 is a deficient number, since it is larger than the sum of its proper divisors (1).

40697801 is an equidigital number, since it uses as much as digits as its factorization.

40697801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 40697801 is about 6379.4828160283. The cubic root of 40697801 is about 343.9724406667.

The spelling of 40697801 in words is "forty million, six hundred ninety-seven thousand, eight hundred one".