40897093 has 2 divisors, whose sum is σ = 40897094. Its totient is φ = 40897092.

The previous prime is 40897081. The next prime is 40897117. The reversal of 40897093 is 39079804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22638564 + 18258529 = 4758^2 + 4273^2 .

It is a cyclic number.

It is not a de Polignac number, because 40897093 - 2⁵ = 40897061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40897033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20448546 + 20448547.

It is an arithmetic number, because the mean of its divisors is an integer number (20448547).

Almost surely, 2^40897093 is an apocalyptic number.

It is an amenable number.

40897093 is a deficient number, since it is larger than the sum of its proper divisors (1).

40897093 is an equidigital number, since it uses as much as digits as its factorization.

40897093 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 40.

The square root of 40897093 is about 6395.0835021914. The cubic root of 40897093 is about 344.5329899040.

The spelling of 40897093 in words is "forty million, eight hundred ninety-seven thousand, ninety-three".