1573998 has 16 divisors (see below), whose sum is σ = 3313920. Its totient is φ = 497016.

The previous prime is 1573997. The next prime is 1574003. The reversal of 1573998 is 8993751.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1573997) 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, 6790 + ... + 7017.

It is an arithmetic number, because the mean of its divisors is an integer number (207120).

2^1573998 is an apocalyptic number.

1573998 is an abundant number, since it is smaller than the sum of its proper divisors (1739922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1573998 is a wasteful number, since it uses less digits than its factorization.

1573998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13831.

The product of its digits is 68040, while the sum is 42.

The square root of 1573998 is about 1254.5907699326. The cubic root of 1573998 is about 116.3236601034.

The spelling of 1573998 in words is "one million, five hundred seventy-three thousand, nine hundred ninety-eight".