612233399 has 2 divisors, whose sum is σ = 612233400. Its totient is φ = 612233398.

The previous prime is 612233381. The next prime is 612233411. The reversal of 612233399 is 993332216.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612233399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612233309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306116699 + 306116700.

It is an arithmetic number, because the mean of its divisors is an integer number (306116700).

Almost surely, 2^612233399 is an apocalyptic number.

612233399 is a deficient number, since it is larger than the sum of its proper divisors (1).

612233399 is an equidigital number, since it uses as much as digits as its factorization.

612233399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The square root of 612233399 is about 24743.3506017273. The cubic root of 612233399 is about 849.1263914775.

The spelling of 612233399 in words is "six hundred twelve million, two hundred thirty-three thousand, three hundred ninety-nine".