814491867 has 24 divisors (see below), whose sum is σ = 1329787200. Its totient is φ = 440926416.

The previous prime is 814491833. The next prime is 814491871. The reversal of 814491867 is 768194418.

It is not a de Polignac number, because 814491867 - 2⁶ = 814491803 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (814491877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143017 + ... + 148602.

It is an arithmetic number, because the mean of its divisors is an integer number (55407800).

Almost surely, 2^814491867 is an apocalyptic number.

814491867 is a deficient number, since it is larger than the sum of its proper divisors (515295333).

814491867 is a wasteful number, since it uses less digits than its factorization.

814491867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291655 (or 291648 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 814491867 is about 28539.3038983084. The cubic root of 814491867 is about 933.8896967560.

The spelling of 814491867 in words is "eight hundred fourteen million, four hundred ninety-one thousand, eight hundred sixty-seven".