723946133 has 4 divisors (see below), whose sum is σ = 737605548. Its totient is φ = 710286720.

The previous prime is 723946121. The next prime is 723946147. The reversal of 723946133 is 331649327.

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 531901969 + 192044164 = 23063^2 + 13858^2 .

It is a cyclic number.

It is not a de Polignac number, because 723946133 - 2¹⁴ = 723929749 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 (723946103) 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, 6829628 + ... + 6829733.

It is an arithmetic number, because the mean of its divisors is an integer number (184401387).

Almost surely, 2^723946133 is an apocalyptic number.

It is an amenable number.

723946133 is a deficient number, since it is larger than the sum of its proper divisors (13659415).

723946133 is a wasteful number, since it uses less digits than its factorization.

723946133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13659414.

The product of its digits is 81648, while the sum is 38.

The square root of 723946133 is about 26906.2470998837. The cubic root of 723946133 is about 897.9153946478.

The spelling of 723946133 in words is "seven hundred twenty-three million, nine hundred forty-six thousand, one hundred thirty-three".