842743102 has 4 divisors (see below), whose sum is σ = 1264114656. Its totient is φ = 421371550.

The previous prime is 842743067. The next prime is 842743123. The reversal of 842743102 is 201347248.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210685774 + ... + 210685777.

It is an arithmetic number, because the mean of its divisors is an integer number (316028664).

Almost surely, 2^842743102 is an apocalyptic number.

842743102 is a deficient number, since it is larger than the sum of its proper divisors (421371554).

842743102 is a wasteful number, since it uses less digits than its factorization.

842743102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421371553.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 842743102 is about 29030.0379262584. The cubic root of 842743102 is about 944.5647527671.

It can be divided in two parts, 8427 and 43102, that added together give a square (51529 = 227²).

The spelling of 842743102 in words is "eight hundred forty-two million, seven hundred forty-three thousand, one hundred two".