913573949 has 2 divisors, whose sum is σ = 913573950. Its totient is φ = 913573948.

The previous prime is 913573889. The next prime is 913573963. The reversal of 913573949 is 949375319.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718776100 + 194797849 = 26810^2 + 13957^2 .

It is a cyclic number.

It is not a de Polignac number, because 913573949 - 2²⁰ = 912525373 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 913573897 and 913573906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (913573049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456786974 + 456786975.

It is an arithmetic number, because the mean of its divisors is an integer number (456786975).

Almost surely, 2^913573949 is an apocalyptic number.

It is an amenable number.

913573949 is a deficient number, since it is larger than the sum of its proper divisors (1).

913573949 is an equidigital number, since it uses as much as digits as its factorization.

913573949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 50.

The square root of 913573949 is about 30225.3858370741. The cubic root of 913573949 is about 970.3190748942.

The spelling of 913573949 in words is "nine hundred thirteen million, five hundred seventy-three thousand, nine hundred forty-nine".