723138853 has 8 divisors (see below), whose sum is σ = 742726656. Its totient is φ = 703644000.

The previous prime is 723138847. The next prime is 723138859. The reversal of 723138853 is 358831327.

It is an interprime number because it is at equal distance from previous prime (723138847) and next prime (723138859).

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

It is a cyclic number.

It is not a de Polignac number, because 723138853 - 2²¹ = 721041701 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 (723138859) 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, 7323 + ... + 38728.

It is an arithmetic number, because the mean of its divisors is an integer number (92840832).

Almost surely, 2^723138853 is an apocalyptic number.

It is an amenable number.

723138853 is a deficient number, since it is larger than the sum of its proper divisors (19587803).

723138853 is a wasteful number, since it uses less digits than its factorization.

723138853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46475.

The product of its digits is 120960, while the sum is 40.

The square root of 723138853 is about 26891.2411948575. The cubic root of 723138853 is about 897.5815121897.

The spelling of 723138853 in words is "seven hundred twenty-three million, one hundred thirty-eight thousand, eight hundred fifty-three".