723793745 has 8 divisors (see below), whose sum is σ = 898502760. Its totient is φ = 559068160.

The previous prime is 723793729. The next prime is 723793747. The reversal of 723793745 is 547397327.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4695889 + 719097856 = 2167^2 + 26816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 723793745 - 2⁴ = 723793729 is a prime.

It is a super-2 number, since 2×723793745² = 1047754770602250050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 723793745.

It is not an unprimeable number, because it can be changed into a prime (723793747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2495696 + ... + 2495985.

It is an arithmetic number, because the mean of its divisors is an integer number (112312845).

Almost surely, 2^723793745 is an apocalyptic number.

It is an amenable number.

723793745 is a deficient number, since it is larger than the sum of its proper divisors (174709015).

723793745 is a wasteful number, since it uses less digits than its factorization.

723793745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991715.

The product of its digits is 1111320, while the sum is 47.

The square root of 723793745 is about 26903.4151177876. The cubic root of 723793745 is about 897.8523875967.

The spelling of 723793745 in words is "seven hundred twenty-three million, seven hundred ninety-three thousand, seven hundred forty-five".