802195687 has 2 divisors, whose sum is σ = 802195688. Its totient is φ = 802195686.

The previous prime is 802195673. The next prime is 802195699. The reversal of 802195687 is 786591208.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-802195687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802195657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401097843 + 401097844.

It is an arithmetic number, because the mean of its divisors is an integer number (401097844).

Almost surely, 2^802195687 is an apocalyptic number.

802195687 is a deficient number, since it is larger than the sum of its proper divisors (1).

802195687 is an equidigital number, since it uses as much as digits as its factorization.

802195687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 802195687 is about 28323.0592803814. The cubic root of 802195687 is about 929.1662806043.

The spelling of 802195687 in words is "eight hundred two million, one hundred ninety-five thousand, six hundred eighty-seven".