1556098 has 4 divisors (see below), whose sum is σ = 2334150. Its totient is φ = 778048.

The previous prime is 1556083. The next prime is 1556117. The reversal of 1556098 is 8906551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8906551 = 587 ⋅15173.

It can be written as a sum of positive squares in only one way, i.e., 1555009 + 1089 = 1247^2 + 33^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389023 + ... + 389026.

2^1556098 is an apocalyptic number.

1556098 is a deficient number, since it is larger than the sum of its proper divisors (778052).

1556098 is an equidigital number, since it uses as much as digits as its factorization.

1556098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778051.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1556098 is about 1247.4365715338. The cubic root of 1556098 is about 115.8810214882.

The spelling of 1556098 in words is "one million, five hundred fifty-six thousand, ninety-eight".