1923998 has 8 divisors (see below), whose sum is σ = 2894400. Its totient is φ = 959200.

The previous prime is 1923991. The next prime is 1924003. The reversal of 1923998 is 8993291.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1923991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (361800).

2^1923998 is an apocalyptic number.

1923998 is a deficient number, since it is larger than the sum of its proper divisors (970402).

1923998 is a wasteful number, since it uses less digits than its factorization.

1923998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802.

The product of its digits is 34992, while the sum is 41.

The square root of 1923998 is about 1387.0825498145. The cubic root of 1923998 is about 124.3755092864.

The spelling of 1923998 in words is "one million, nine hundred twenty-three thousand, nine hundred ninety-eight".