42974247 has 8 divisors (see below), whose sum is σ = 57333744. Its totient is φ = 28632128.

The previous prime is 42974233. The next prime is 42974293. The reversal of 42974247 is 74247924.

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

It is a cyclic number.

It is not a de Polignac number, because 42974247 - 2⁷ = 42974119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42974207) 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, 3403 + ... + 9875.

It is an arithmetic number, because the mean of its divisors is an integer number (7166718).

Almost surely, 2^42974247 is an apocalyptic number.

42974247 is a deficient number, since it is larger than the sum of its proper divisors (14359497).

42974247 is a wasteful number, since it uses less digits than its factorization.

42974247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8689.

The product of its digits is 112896, while the sum is 39.

The square root of 42974247 is about 6555.4745823624. The cubic root of 42974247 is about 350.2698517534.

The spelling of 42974247 in words is "forty-two million, nine hundred seventy-four thousand, two hundred forty-seven".