611724973 has 2 divisors, whose sum is σ = 611724974. Its totient is φ = 611724972.

The previous prime is 611724947. The next prime is 611724977. The reversal of 611724973 is 379427116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395134884 + 216590089 = 19878^2 + 14717^2 .

It is a cyclic number.

It is not a de Polignac number, because 611724973 - 2²⁹ = 74854061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611724977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305862486 + 305862487.

It is an arithmetic number, because the mean of its divisors is an integer number (305862487).

Almost surely, 2^611724973 is an apocalyptic number.

It is an amenable number.

611724973 is a deficient number, since it is larger than the sum of its proper divisors (1).

611724973 is an equidigital number, since it uses as much as digits as its factorization.

611724973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 611724973 is about 24733.0744752851. The cubic root of 611724973 is about 848.8912755361.

The spelling of 611724973 in words is "six hundred eleven million, seven hundred twenty-four thousand, nine hundred seventy-three".