40677389 has 2 divisors, whose sum is σ = 40677390. Its totient is φ = 40677388.

The previous prime is 40677367. The next prime is 40677407. The reversal of 40677389 is 98377604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40576900 + 100489 = 6370^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 40677389 - 2¹² = 40673293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40677089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20338694 + 20338695.

It is an arithmetic number, because the mean of its divisors is an integer number (20338695).

Almost surely, 2^40677389 is an apocalyptic number.

It is an amenable number.

40677389 is a deficient number, since it is larger than the sum of its proper divisors (1).

40677389 is an equidigital number, since it uses as much as digits as its factorization.

40677389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 40677389 is about 6377.8827991740. The cubic root of 40677389 is about 343.9149245402.

The spelling of 40677389 in words is "forty million, six hundred seventy-seven thousand, three hundred eighty-nine".