400000677 has 16 divisors (see below), whose sum is σ = 540414720. Its totient is φ = 263148032.

The previous prime is 400000669. The next prime is 400000709. The reversal of 400000677 is 776000004.

It is a cyclic number.

It is not a de Polignac number, because 400000677 - 2³ = 400000669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400000477) 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 in 15 ways as a sum of consecutive naturals, for example, 78553 + ... + 83489.

It is an arithmetic number, because the mean of its divisors is an integer number (33775920).

Almost surely, 2^400000677 is an apocalyptic number.

It is an amenable number.

400000677 is a deficient number, since it is larger than the sum of its proper divisors (140414043).

400000677 is a wasteful number, since it uses less digits than its factorization.

400000677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 400000677 is about 20000.0169249928. The cubic root of 400000677 is about 736.8067154094.

The spelling of 400000677 in words is "four hundred million, six hundred seventy-seven", and thus it is an aban number.