723076973 has 4 divisors (see below), whose sum is σ = 725222940. Its totient is φ = 720931008.

The previous prime is 723076969. The next prime is 723077071. The reversal of 723076973 is 379670327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80048809 + 643028164 = 8947^2 + 25358^2 .

It is a cyclic number.

It is not a de Polignac number, because 723076973 - 2² = 723076969 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 (723076373) 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, 1072478 + ... + 1073151.

It is an arithmetic number, because the mean of its divisors is an integer number (181305735).

Almost surely, 2^723076973 is an apocalyptic number.

It is an amenable number.

723076973 is a deficient number, since it is larger than the sum of its proper divisors (2145967).

723076973 is a wasteful number, since it uses less digits than its factorization.

723076973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145966.

The product of its (nonzero) digits is 333396, while the sum is 44.

The square root of 723076973 is about 26890.0906097395. The cubic root of 723076973 is about 897.5559090256. Note that the first 3 decimals are identical.

The spelling of 723076973 in words is "seven hundred twenty-three million, seventy-six thousand, nine hundred seventy-three".