1230898 has 4 divisors (see below), whose sum is σ = 1846350. Its totient is φ = 615448.

The previous prime is 1230881. The next prime is 1230907. The reversal of 1230898 is 8980321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8980321 = 7 ⋅1282903.

It can be written as a sum of positive squares in only one way, i.e., 1096209 + 134689 = 1047^2 + 367^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307723 + ... + 307726.

2^1230898 is an apocalyptic number.

1230898 is a deficient number, since it is larger than the sum of its proper divisors (615452).

1230898 is an equidigital number, since it uses as much as digits as its factorization.

1230898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615451.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1230898 is about 1109.4584264406. The cubic root of 1230898 is about 107.1701952673.

The spelling of 1230898 in words is "one million, two hundred thirty thousand, eight hundred ninety-eight".