8724742 has 8 divisors (see below), whose sum is σ = 14093856. Its totient is φ = 4026792.

The previous prime is 8724739. The next prime is 8724787. The reversal of 8724742 is 2474278.

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

It is a super-2 number, since 2×8724742² = 152242245933128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8724698 and 8724707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167758 + ... + 167809.

It is an arithmetic number, because the mean of its divisors is an integer number (1761732).

Almost surely, 2^8724742 is an apocalyptic number.

8724742 is a deficient number, since it is larger than the sum of its proper divisors (5369114).

8724742 is a wasteful number, since it uses less digits than its factorization.

8724742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335582.

The product of its digits is 25088, while the sum is 34.

The square root of 8724742 is about 2953.7674248322. The cubic root of 8724742 is about 205.8657969016.

The spelling of 8724742 in words is "eight million, seven hundred twenty-four thousand, seven hundred forty-two".