42704993 has 8 divisors (see below), whose sum is σ = 44031360. Its totient is φ = 41387760.

The previous prime is 42704971. The next prime is 42705007. The reversal of 42704993 is 39940724.

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 42704993 - 2⁸ = 42704737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42704953) 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, 7898 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (5503920).

Almost surely, 2^42704993 is an apocalyptic number.

It is an amenable number.

42704993 is a deficient number, since it is larger than the sum of its proper divisors (1326367).

42704993 is a wasteful number, since it uses less digits than its factorization.

42704993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 42704993 is about 6534.9057376522. The cubic root of 42704993 is about 349.5367831321.

The spelling of 42704993 in words is "forty-two million, seven hundred four thousand, nine hundred ninety-three".