398877 has 8 divisors (see below), whose sum is σ = 549120. Its totient is φ = 257280.

The previous prime is 398863. The next prime is 398887. The reversal of 398877 is 778893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 398877 - 2⁶ = 398813 is a prime.

It is a super-2 number, since 2×398877² = 318205722258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2052 + ... + 2237.

It is an arithmetic number, because the mean of its divisors is an integer number (68640).

2³⁹⁸⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

398877 is a deficient number, since it is larger than the sum of its proper divisors (150243).

398877 is a wasteful number, since it uses less digits than its factorization.

398877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323.

The product of its digits is 84672, while the sum is 42.

The square root of 398877 is about 631.5670985731. The cubic root of 398877 is about 73.6116125541.

It can be divided in two parts, 398 and 877, that added together give a triangular number (1275 = T₅₀).

The spelling of 398877 in words is "three hundred ninety-eight thousand, eight hundred seventy-seven".