612633 has 8 divisors (see below), whose sum is σ = 933568. Its totient is φ = 350064.

The previous prime is 612613. The next prime is 612637. The reversal of 612633 is 336216.

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

It is not a de Polignac number, because 612633 - 2⁸ = 612377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 29173 = 612633 / (6 + 1 + 2 + 6 + 3 + 3).

It is a Duffinian number.

612633 is a lucky number.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (612637) 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, 14566 + ... + 14607.

It is an arithmetic number, because the mean of its divisors is an integer number (116696).

2⁶¹²⁶³³ is an apocalyptic number.

It is an amenable number.

612633 is a deficient number, since it is larger than the sum of its proper divisors (320935).

612633 is a wasteful number, since it uses less digits than its factorization.

612633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29183.

The product of its digits is 648, while the sum is 21.

The square root of 612633 is about 782.7087580959. The cubic root of 612633 is about 84.9311091169.

Adding to 612633 its reverse (336216), we get a palindrome (948849).

The spelling of 612633 in words is "six hundred twelve thousand, six hundred thirty-three".