1801598 has 8 divisors (see below), whose sum is σ = 2735208. Its totient is φ = 889864.

The previous prime is 1801589. The next prime is 1801601. The reversal of 1801598 is 8951081.

It is a happy number.

1801598 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

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

It is an Ulam number.

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, 5261 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (341901).

2^1801598 is an apocalyptic number.

1801598 is a deficient number, since it is larger than the sum of its proper divisors (933610).

1801598 is a wasteful number, since it uses less digits than its factorization.

1801598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10938.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1801598 is about 1342.2361938199. The cubic root of 1801598 is about 121.6800268892.

The spelling of 1801598 in words is "one million, eight hundred one thousand, five hundred ninety-eight".