847772494 has 8 divisors (see below), whose sum is σ = 1279273968. Its totient is φ = 421347840.

The previous prime is 847772491. The next prime is 847772501. The reversal of 847772494 is 494277748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847772491) 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, 1268787 + ... + 1269454.

It is an arithmetic number, because the mean of its divisors is an integer number (159909246).

Almost surely, 2^847772494 is an apocalyptic number.

847772494 is a deficient number, since it is larger than the sum of its proper divisors (431501474).

847772494 is a wasteful number, since it uses less digits than its factorization.

847772494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538410.

The product of its digits is 3161088, while the sum is 52.

The square root of 847772494 is about 29116.5330010288. The cubic root of 847772494 is about 946.4400444165.

The spelling of 847772494 in words is "eight hundred forty-seven million, seven hundred seventy-two thousand, four hundred ninety-four".