40676621 has 2 divisors, whose sum is σ = 40676622. Its totient is φ = 40676620.

The previous prime is 40676611. The next prime is 40676677. The reversal of 40676621 is 12667604.

40676621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22944100 + 17732521 = 4790^2 + 4211^2 .

It is a cyclic number.

It is not a de Polignac number, because 40676621 - 2¹⁴ = 40660237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_2472269 and since 40676621 and 2472269 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40676611) 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, 20338310 + 20338311.

It is an arithmetic number, because the mean of its divisors is an integer number (20338311).

Almost surely, 2^40676621 is an apocalyptic number.

It is an amenable number.

40676621 is a deficient number, since it is larger than the sum of its proper divisors (1).

40676621 is an equidigital number, since it uses as much as digits as its factorization.

40676621 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 32.

The square root of 40676621 is about 6377.8225908220. The cubic root of 40676621 is about 343.9127601246.

The spelling of 40676621 in words is "forty million, six hundred seventy-six thousand, six hundred twenty-one".