847272742 has 4 divisors (see below), whose sum is σ = 1270909116. Its totient is φ = 423636370.

The previous prime is 847272703. The next prime is 847272743. The reversal of 847272742 is 247272748.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847272743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211818184 + ... + 211818187.

It is an arithmetic number, because the mean of its divisors is an integer number (317727279).

Almost surely, 2^847272742 is an apocalyptic number.

847272742 is a deficient number, since it is larger than the sum of its proper divisors (423636374).

847272742 is a wasteful number, since it uses less digits than its factorization.

847272742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423636373.

The product of its digits is 351232, while the sum is 43.

The square root of 847272742 is about 29107.9498075698. The cubic root of 847272742 is about 946.2540360716.

The spelling of 847272742 in words is "eight hundred forty-seven million, two hundred seventy-two thousand, seven hundred forty-two".