802087690 has 32 divisors (see below), whose sum is σ = 1473454800. Its totient is φ = 314256384.

The previous prime is 802087687. The next prime is 802087703. The reversal of 802087690 is 96780208.

It can be written as a sum of positive squares in 8 ways, for example, as 575856009 + 226231681 = 23997^2 + 15041^2 .

It is a super-2 number, since 2×802087690² = 1286689324899072200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517036 + ... + 518584.

Almost surely, 2^802087690 is an apocalyptic number.

802087690 is a deficient number, since it is larger than the sum of its proper divisors (671367110).

802087690 is a wasteful number, since it uses less digits than its factorization.

802087690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 802087690 is about 28321.1526954677. The cubic root of 802087690 is about 929.1245818534.

The spelling of 802087690 in words is "eight hundred two million, eighty-seven thousand, six hundred ninety".