8747742 has 8 divisors (see below), whose sum is σ = 17495496. Its totient is φ = 2915912.

The previous prime is 8747737. The next prime is 8747743. The reversal of 8747742 is 2477478.

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

8747742 is an admirable number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8747742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8747743) 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, 728973 + ... + 728984.

It is an arithmetic number, because the mean of its divisors is an integer number (2186937).

Almost surely, 2^8747742 is an apocalyptic number.

8747742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8747742 is a wasteful number, since it uses less digits than its factorization.

8747742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457962.

The product of its digits is 87808, while the sum is 39.

The square root of 8747742 is about 2957.6581952619. The cubic root of 8747742 is about 206.0465380137.

The spelling of 8747742 in words is "eight million, seven hundred forty-seven thousand, seven hundred forty-two".