40989097 has 2 divisors, whose sum is σ = 40989098. Its totient is φ = 40989096.

The previous prime is 40989077. The next prime is 40989103. The reversal of 40989097 is 79098904.

40989097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40500496 + 488601 = 6364^2 + 699^2 .

It is a cyclic number.

It is not a de Polignac number, because 40989097 - 2¹⁵ = 40956329 is a prime.

It is not a weakly prime, because it can be changed into another prime (40989077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20494548 + 20494549.

It is an arithmetic number, because the mean of its divisors is an integer number (20494549).

Almost surely, 2^40989097 is an apocalyptic number.

It is an amenable number.

40989097 is a deficient number, since it is larger than the sum of its proper divisors (1).

40989097 is an equidigital number, since it uses as much as digits as its factorization.

40989097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 40989097 is about 6402.2727995611. The cubic root of 40989097 is about 344.7911555459.

The spelling of 40989097 in words is "forty million, nine hundred eighty-nine thousand, ninety-seven".