371998 has 16 divisors (see below), whose sum is σ = 626544. Its totient is φ = 164160.

The previous prime is 371981. The next prime is 371999. The reversal of 371998 is 899173.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (371999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586 + ... + 1042.

It is an arithmetic number, because the mean of its divisors is an integer number (39159).

2³⁷¹⁹⁹⁸ is an apocalyptic number.

371998 is a deficient number, since it is larger than the sum of its proper divisors (254546).

371998 is a wasteful number, since it uses less digits than its factorization.

371998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

The product of its digits is 13608, while the sum is 37.

The square root of 371998 is about 609.9163877123. The cubic root of 371998 is about 71.9195345930.

It can be divided in two parts, 371 and 998, that added together give a square (1369 = 37²).

The spelling of 371998 in words is "three hundred seventy-one thousand, nine hundred ninety-eight".