42847393 has 8 divisors (see below), whose sum is σ = 44589600. Its totient is φ = 41139168.

The previous prime is 42847391. The next prime is 42847397. The reversal of 42847393 is 39374824.

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 42847393 - 2¹ = 42847391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42847391) 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, 5908 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (5573700).

Almost surely, 2^42847393 is an apocalyptic number.

42847393 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42847393 is a deficient number, since it is larger than the sum of its proper divisors (1742207).

42847393 is a wasteful number, since it uses less digits than its factorization.

42847393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16991.

The product of its digits is 145152, while the sum is 40.

The square root of 42847393 is about 6545.7920070836. The cubic root of 42847393 is about 349.9248627824.

The spelling of 42847393 in words is "forty-two million, eight hundred forty-seven thousand, three hundred ninety-three".