724981773 has 4 divisors (see below), whose sum is σ = 966642368. Its totient is φ = 483321180.

The previous prime is 724981769. The next prime is 724981799. The reversal of 724981773 is 377189427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 724981773 - 2² = 724981769 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724981703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120830293 + ... + 120830298.

It is an arithmetic number, because the mean of its divisors is an integer number (241660592).

Almost surely, 2^724981773 is an apocalyptic number.

It is an amenable number.

724981773 is a deficient number, since it is larger than the sum of its proper divisors (241660595).

724981773 is a wasteful number, since it uses less digits than its factorization.

724981773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241660594.

The product of its digits is 592704, while the sum is 48.

The square root of 724981773 is about 26925.4855666523. The cubic root of 724981773 is about 898.3433611215.

The spelling of 724981773 in words is "seven hundred twenty-four million, nine hundred eighty-one thousand, seven hundred seventy-three".