1881098 has 4 divisors (see below), whose sum is σ = 2821650. Its totient is φ = 940548.

The previous prime is 1881083. The next prime is 1881109. The reversal of 1881098 is 8901881.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 528529 = 1163^2 + 727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470273 + ... + 470276.

2^1881098 is an apocalyptic number.

1881098 is a deficient number, since it is larger than the sum of its proper divisors (940552).

1881098 is an equidigital number, since it uses as much as digits as its factorization.

1881098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940551.

The product of its (nonzero) digits is 4608, while the sum is 35.

The square root of 1881098 is about 1371.5312610364. The cubic root of 1881098 is about 123.4441387125. Note that the first 3 decimals are identical.

The spelling of 1881098 in words is "one million, eight hundred eighty-one thousand, ninety-eight".