847029242 has 8 divisors (see below), whose sum is σ = 1281787956. Its totient is φ = 419766592.

The previous prime is 847029241. The next prime is 847029251. The reversal of 847029242 is 242920748.

It can be written as a sum of positive squares in 2 ways, for example, as 585204481 + 261824761 = 24191^2 + 16181^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 847029196 and 847029205.

It is not an unprimeable number, because it can be changed into a prime (847029241) 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, 1873733 + ... + 1874184.

Almost surely, 2^847029242 is an apocalyptic number.

847029242 is a deficient number, since it is larger than the sum of its proper divisors (434758714).

847029242 is a wasteful number, since it uses less digits than its factorization.

847029242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748032.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 847029242 is about 29103.7668008799. The cubic root of 847029242 is about 946.1633785525.

The spelling of 847029242 in words is "eight hundred forty-seven million, twenty-nine thousand, two hundred forty-two".