847950899 has 4 divisors (see below), whose sum is σ = 856183536. Its totient is φ = 839718264.

The previous prime is 847950881. The next prime is 847950911. The reversal of 847950899 is 998059748.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-847950899 is a prime.

It is a super-2 number, since 2×847950899² = 1438041454229816402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847950199) 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, 4116164 + ... + 4116369.

It is an arithmetic number, because the mean of its divisors is an integer number (214045884).

Almost surely, 2^847950899 is an apocalyptic number.

847950899 is a deficient number, since it is larger than the sum of its proper divisors (8232637).

847950899 is a wasteful number, since it uses less digits than its factorization.

847950899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8232636.

The product of its (nonzero) digits is 6531840, while the sum is 59.

The square root of 847950899 is about 29119.5964772866. The cubic root of 847950899 is about 946.5064292837.

The spelling of 847950899 in words is "eight hundred forty-seven million, nine hundred fifty thousand, eight hundred ninety-nine".