401877 has 12 divisors (see below), whose sum is σ = 663520. Its totient is φ = 229608.

The previous prime is 401867. The next prime is 401887. The reversal of 401877 is 778104.

It is an interprime number because it is at equal distance from previous prime (401867) and next prime (401887).

It is not a de Polignac number, because 401877 - 2⁴ = 401861 is a prime.

It is an Ulam number.

It is a Duffinian number.

401877 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 401877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3127 + ... + 3252.

2⁴⁰¹⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

401877 is a deficient number, since it is larger than the sum of its proper divisors (261643).

401877 is a wasteful number, since it uses less digits than its factorization.

401877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392 (or 6389 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 401877 is about 633.9376940993. The cubic root of 401877 is about 73.7956989584.

It can be divided in two parts, 4018 and 77, that added together give a triangular number (4095 = T₉₀).

The spelling of 401877 in words is "four hundred one thousand, eight hundred seventy-seven".