802663690 has 16 divisors (see below), whose sum is σ = 1445362560. Its totient is φ = 320939280.

The previous prime is 802663663. The next prime is 802663691. The reversal of 802663690 is 96366208.

It is a super-2 number, since 2×802663690² = 1288537998488832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (802663691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13531 + ... + 42289.

It is an arithmetic number, because the mean of its divisors is an integer number (90335160).

Almost surely, 2^802663690 is an apocalyptic number.

802663690 is a deficient number, since it is larger than the sum of its proper divisors (642698870).

802663690 is a wasteful number, since it uses less digits than its factorization.

802663690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31557.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 802663690 is about 28331.3199480716. The cubic root of 802663690 is about 929.3469381323.

The spelling of 802663690 in words is "eight hundred two million, six hundred sixty-three thousand, six hundred ninety".