6450723 has 6 divisors (see below), whose sum is σ = 9317724. Its totient is φ = 4300476.

The previous prime is 6450707. The next prime is 6450727. The reversal of 6450723 is 3270546.

It is a happy number.

It is not a de Polignac number, because 6450723 - 2⁴ = 6450707 is a prime.

It is a super-2 number, since 2×6450723² = 83223654445458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6450727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358365 + ... + 358382.

It is an arithmetic number, because the mean of its divisors is an integer number (1552954).

Almost surely, 2^6450723 is an apocalyptic number.

6450723 is a deficient number, since it is larger than the sum of its proper divisors (2867001).

6450723 is a wasteful number, since it uses less digits than its factorization.

6450723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716753 (or 716750 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 6450723 is about 2539.8273563374. The cubic root of 6450723 is about 186.1527534616.

The spelling of 6450723 in words is "six million, four hundred fifty thousand, seven hundred twenty-three".