916287871 has 2 divisors, whose sum is σ = 916287872. Its totient is φ = 916287870.

The previous prime is 916287851. The next prime is 916287881. The reversal of 916287871 is 178782619.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 916287871 - 2⁵ = 916287839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916287821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458143935 + 458143936.

It is an arithmetic number, because the mean of its divisors is an integer number (458143936).

Almost surely, 2^916287871 is an apocalyptic number.

916287871 is a deficient number, since it is larger than the sum of its proper divisors (1).

916287871 is an equidigital number, since it uses as much as digits as its factorization.

916287871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 49.

The square root of 916287871 is about 30270.2472900371. The cubic root of 916287871 is about 971.2789559424.

It can be divided in two parts, 91628 and 7871, that added together give a palindrome (99499).

The spelling of 916287871 in words is "nine hundred sixteen million, two hundred eighty-seven thousand, eight hundred seventy-one".