1953998 has 8 divisors (see below), whose sum is σ = 3085320. Its totient is φ = 925560.

The previous prime is 1953983. The next prime is 1954003. The reversal of 1953998 is 8993591.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25673 + ... + 25748.

It is an arithmetic number, because the mean of its divisors is an integer number (385665).

2^1953998 is an apocalyptic number.

1953998 is a deficient number, since it is larger than the sum of its proper divisors (1131322).

1953998 is a wasteful number, since it uses less digits than its factorization.

1953998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51442.

The product of its digits is 87480, while the sum is 44.

The square root of 1953998 is about 1397.8547850188. The cubic root of 1953998 is about 125.0186212259.

The spelling of 1953998 in words is "one million, nine hundred fifty-three thousand, nine hundred ninety-eight".