40697273 has 2 divisors, whose sum is σ = 40697274. Its totient is φ = 40697272.

The previous prime is 40697263. The next prime is 40697323. The reversal of 40697273 is 37279604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36808489 + 3888784 = 6067^2 + 1972^2 .

It is a cyclic number.

It is not a de Polignac number, because 40697273 - 2¹⁴ = 40680889 is a prime.

It is not a weakly prime, because it can be changed into another prime (40697213) 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, 20348636 + 20348637.

It is an arithmetic number, because the mean of its divisors is an integer number (20348637).

Almost surely, 2^40697273 is an apocalyptic number.

It is an amenable number.

40697273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40697273 is an equidigital number, since it uses as much as digits as its factorization.

40697273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 40697273 is about 6379.4414332291. The cubic root of 40697273 is about 343.9709531315.

It can be divided in two parts, 406 and 97273, that added together give a palindrome (97679).

The spelling of 40697273 in words is "forty million, six hundred ninety-seven thousand, two hundred seventy-three".