8742993 has 8 divisors (see below), whose sum is σ = 13322688. Its totient is φ = 4995984.

The previous prime is 8742977. The next prime is 8742997. The reversal of 8742993 is 3992478.

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

It is not a de Polignac number, because 8742993 - 2⁴ = 8742977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8742997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208146 + ... + 208187.

It is an arithmetic number, because the mean of its divisors is an integer number (1665336).

Almost surely, 2^8742993 is an apocalyptic number.

It is an amenable number.

8742993 is a deficient number, since it is larger than the sum of its proper divisors (4579695).

8742993 is a wasteful number, since it uses less digits than its factorization.

8742993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416343.

The product of its digits is 108864, while the sum is 42.

The square root of 8742993 is about 2956.8552551655. The cubic root of 8742993 is about 206.0092448800.

The spelling of 8742993 in words is "eight million, seven hundred forty-two thousand, nine hundred ninety-three".