1579998 has 16 divisors (see below), whose sum is σ = 3611520. Its totient is φ = 451416.

The previous prime is 1579993. The next prime is 1580003. The reversal of 1579998 is 8999751.

It is an interprime number because it is at equal distance from previous prime (1579993) and next prime (1580003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1579993) 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, 18768 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (225720).

2^1579998 is an apocalyptic number.

1579998 is an abundant number, since it is smaller than the sum of its proper divisors (2031522).

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

1579998 is a wasteful number, since it uses less digits than its factorization.

1579998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37631.

The product of its digits is 204120, while the sum is 48.

The square root of 1579998 is about 1256.9797134401. The cubic root of 1579998 is about 116.4712793071.

The spelling of 1579998 in words is "one million, five hundred seventy-nine thousand, nine hundred ninety-eight".