723880051 has 4 divisors (see below), whose sum is σ = 741535704. Its totient is φ = 706224400.

The previous prime is 723880019. The next prime is 723880063. The reversal of 723880051 is 150088327.

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

It is a cyclic number.

It is not a de Polignac number, because 723880051 - 2⁵ = 723880019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 723879989 and 723880016.

It is not an unprimeable number, because it can be changed into a prime (723880951) 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, 8827765 + ... + 8827846.

It is an arithmetic number, because the mean of its divisors is an integer number (185383926).

Almost surely, 2^723880051 is an apocalyptic number.

723880051 is a deficient number, since it is larger than the sum of its proper divisors (17655653).

723880051 is a wasteful number, since it uses less digits than its factorization.

723880051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17655652.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 723880051 is about 26905.0190670811. The cubic root of 723880051 is about 897.8880731627. Note that the first 3 decimals are identical.

The spelling of 723880051 in words is "seven hundred twenty-three million, eight hundred eighty thousand, fifty-one".