1027819802 has 4 divisors (see below), whose sum is σ = 1541729706. Its totient is φ = 513909900.

The previous prime is 1027819759. The next prime is 1027819817. The reversal of 1027819802 is 2089187201.

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., 577488961 + 450330841 = 24031^2 + 21221^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256954949 + ... + 256954952.

Almost surely, 2^1027819802 is an apocalyptic number.

1027819802 is a deficient number, since it is larger than the sum of its proper divisors (513909904).

1027819802 is an equidigital number, since it uses as much as digits as its factorization.

1027819802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513909903.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 1027819802 is about 32059.6288500039. The cubic root of 1027819802 is about 1009.1885787566.

The spelling of 1027819802 in words is "one billion, twenty-seven million, eight hundred nineteen thousand, eight hundred two".