612791 has 2 divisors, whose sum is σ = 612792. Its totient is φ = 612790.

The previous prime is 612763. The next prime is 612797. The reversal of 612791 is 197216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612791 - 2⁶ = 612727 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306395 + 306396.

It is an arithmetic number, because the mean of its divisors is an integer number (306396).

2⁶¹²⁷⁹¹ is an apocalyptic number.

612791 is a deficient number, since it is larger than the sum of its proper divisors (1).

612791 is an equidigital number, since it uses as much as digits as its factorization.

612791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 26.

The square root of 612791 is about 782.8096831287. The cubic root of 612791 is about 84.9384098237.

The spelling of 612791 in words is "six hundred twelve thousand, seven hundred ninety-one".