802723651 has 2 divisors, whose sum is σ = 802723652. Its totient is φ = 802723650.

The previous prime is 802723631. The next prime is 802723681. The reversal of 802723651 is 156327208.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 802723651 - 2¹⁷ = 802592579 is a prime.

It is not a weakly prime, because it can be changed into another prime (802723601) by changing a digit.

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 as a sum of consecutive naturals, namely, 401361825 + 401361826.

It is an arithmetic number, because the mean of its divisors is an integer number (401361826).

Almost surely, 2^802723651 is an apocalyptic number.

802723651 is a deficient number, since it is larger than the sum of its proper divisors (1).

802723651 is an equidigital number, since it uses as much as digits as its factorization.

802723651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 802723651 is about 28332.3781388008. The cubic root of 802723651 is about 929.3700790754.

The spelling of 802723651 in words is "eight hundred two million, seven hundred twenty-three thousand, six hundred fifty-one".