400677007 has 2 divisors, whose sum is σ = 400677008. Its totient is φ = 400677006.

The previous prime is 400676989. The next prime is 400677037. The reversal of 400677007 is 700776004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400677007 - 2¹⁹ = 400152719 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400677007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400677037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200338503 + 200338504.

It is an arithmetic number, because the mean of its divisors is an integer number (200338504).

Almost surely, 2^400677007 is an apocalyptic number.

400677007 is a deficient number, since it is larger than the sum of its proper divisors (1).

400677007 is an equidigital number, since it uses as much as digits as its factorization.

400677007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 400677007 is about 20016.9180195154. The cubic root of 400677007 is about 737.2217512820.

It can be divided in two parts, 40067 and 7007, that added together give a palindrome (47074).

The spelling of 400677007 in words is "four hundred million, six hundred seventy-seven thousand, seven".