42997633 has 8 divisors (see below), whose sum is σ = 50834880. Its totient is φ = 35584080.

The previous prime is 42997631. The next prime is 42997637. The reversal of 42997633 is 33679924.

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

It is not a de Polignac number, because 42997633 - 2¹ = 42997631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42997633.

It is not an unprimeable number, because it can be changed into a prime (42997631) 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, 105703 + ... + 106108.

It is an arithmetic number, because the mean of its divisors is an integer number (6354360).

Almost surely, 2^42997633 is an apocalyptic number.

It is an amenable number.

42997633 is a deficient number, since it is larger than the sum of its proper divisors (7837247).

42997633 is a wasteful number, since it uses less digits than its factorization.

42997633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211847.

The product of its digits is 244944, while the sum is 43.

The square root of 42997633 is about 6557.2580397602. The cubic root of 42997633 is about 350.3333775926. Note that the first 4 decimals are identical.

The spelling of 42997633 in words is "forty-two million, nine hundred ninety-seven thousand, six hundred thirty-three".