847380899 has 4 divisors (see below), whose sum is σ = 876600960. Its totient is φ = 818160840.

The previous prime is 847380893. The next prime is 847380913. The reversal of 847380899 is 998083748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 847380899 - 2⁴ = 847380883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847380893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14609987 + ... + 14610044.

It is an arithmetic number, because the mean of its divisors is an integer number (219150240).

Almost surely, 2^847380899 is an apocalyptic number.

847380899 is a deficient number, since it is larger than the sum of its proper divisors (29220061).

847380899 is a wasteful number, since it uses less digits than its factorization.

847380899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29220060.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 847380899 is about 29109.8076084333. The cubic root of 847380899 is about 946.2942984484.

The spelling of 847380899 in words is "eight hundred forty-seven million, three hundred eighty thousand, eight hundred ninety-nine".