12399733 has 8 divisors (see below), whose sum is σ = 12925080. Its totient is φ = 11880960.

The previous prime is 12399727. The next prime is 12399763. The reversal of 12399733 is 33799321.

It can be written as a sum of positive squares in 4 ways, for example, as 58564 + 12341169 = 242^2 + 3513^2 .

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 12399733 - 2¹³ = 12391541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12399692 and 12399701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12399763) 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, 2413 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (1615635).

Almost surely, 2^12399733 is an apocalyptic number.

It is an amenable number.

12399733 is a deficient number, since it is larger than the sum of its proper divisors (525347).

12399733 is a wasteful number, since it uses less digits than its factorization.

12399733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287.

The product of its digits is 30618, while the sum is 37.

The square root of 12399733 is about 3521.3254606753. The cubic root of 12399733 is about 231.4572441630.

It can be divided in two parts, 123 and 99733, that added together give a square (99856 = 316²).

The spelling of 12399733 in words is "twelve million, three hundred ninety-nine thousand, seven hundred thirty-three".