802192891 has 2 divisors, whose sum is σ = 802192892. Its totient is φ = 802192890.

The previous prime is 802192879. The next prime is 802192931. The reversal of 802192891 is 198291208.

It is an a-pointer prime, because the next prime (802192931) can be obtained adding 802192891 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 802192891 - 2¹³ = 802184699 is a prime.

It is not a weakly prime, because it can be changed into another prime (802192691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401096445 + 401096446.

It is an arithmetic number, because the mean of its divisors is an integer number (401096446).

Almost surely, 2^802192891 is an apocalyptic number.

802192891 is a deficient number, since it is larger than the sum of its proper divisors (1).

802192891 is an equidigital number, since it uses as much as digits as its factorization.

802192891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 802192891 is about 28323.0099212637. The cubic root of 802192891 is about 929.1652010871.

The spelling of 802192891 in words is "eight hundred two million, one hundred ninety-two thousand, eight hundred ninety-one".