609700073 has 2 divisors, whose sum is σ = 609700074. Its totient is φ = 609700072.

The previous prime is 609700057. The next prime is 609700079. The reversal of 609700073 is 370007906.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512026384 + 97673689 = 22628^2 + 9883^2 .

It is a cyclic number.

It is not a de Polignac number, because 609700073 - 2⁴ = 609700057 is a prime.

It is equal to p_31804565 and since 609700073 and 31804565 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (609700079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304850036 + 304850037.

It is an arithmetic number, because the mean of its divisors is an integer number (304850037).

Almost surely, 2^609700073 is an apocalyptic number.

It is an amenable number.

609700073 is a deficient number, since it is larger than the sum of its proper divisors (1).

609700073 is an equidigital number, since it uses as much as digits as its factorization.

609700073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 609700073 is about 24692.1054792822. The cubic root of 609700073 is about 847.9535883174.

Adding to 609700073 its reverse (370007906), we get a palindrome (979707979).

The spelling of 609700073 in words is "six hundred nine million, seven hundred thousand, seventy-three".