8634742 has 12 divisors (see below), whose sum is σ = 13759740. Its totient is φ = 4063136.

The previous prime is 8634713. The next prime is 8634751. The reversal of 8634742 is 2474368.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 8634698 and 8634707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6892 + ... + 8047.

It is an arithmetic number, because the mean of its divisors is an integer number (1146645).

Almost surely, 2^8634742 is an apocalyptic number.

8634742 is a deficient number, since it is larger than the sum of its proper divisors (5124998).

8634742 is a wasteful number, since it uses less digits than its factorization.

8634742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14975 (or 14958 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 8634742 is about 2938.4931512597. The cubic root of 8634742 is about 205.1554799066.

The spelling of 8634742 in words is "eight million, six hundred thirty-four thousand, seven hundred forty-two".