40403677 has 2 divisors, whose sum is σ = 40403678. Its totient is φ = 40403676.

The previous prime is 40403659. The next prime is 40403683. The reversal of 40403677 is 77630404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29474041 + 10929636 = 5429^2 + 3306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40403677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40403647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201838 + 20201839.

It is an arithmetic number, because the mean of its divisors is an integer number (20201839).

Almost surely, 2^40403677 is an apocalyptic number.

It is an amenable number.

40403677 is a deficient number, since it is larger than the sum of its proper divisors (1).

40403677 is an equidigital number, since it uses as much as digits as its factorization.

40403677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 40403677 is about 6356.3886759700. The cubic root of 40403677 is about 343.1418040262.

The spelling of 40403677 in words is "forty million, four hundred three thousand, six hundred seventy-seven".