612204623 has 2 divisors, whose sum is σ = 612204624. Its totient is φ = 612204622.

The previous prime is 612204589. The next prime is 612204667. The reversal of 612204623 is 326402216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612204623 - 2⁶ = 612204559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612204592 and 612204601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612204683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306102311 + 306102312.

It is an arithmetic number, because the mean of its divisors is an integer number (306102312).

Almost surely, 2^612204623 is an apocalyptic number.

612204623 is a deficient number, since it is larger than the sum of its proper divisors (1).

612204623 is an equidigital number, since it uses as much as digits as its factorization.

612204623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 612204623 is about 24742.7691053366. The cubic root of 612204623 is about 849.1130878127.

Adding to 612204623 its reverse (326402216), we get a palindrome (938606839).

The spelling of 612204623 in words is "six hundred twelve million, two hundred four thousand, six hundred twenty-three".