723109641 has 8 divisors (see below), whose sum is σ = 964308480. Its totient is φ = 481991952.

The previous prime is 723109633. The next prime is 723109649. The reversal of 723109641 is 146901327.

It is an interprime number because it is at equal distance from previous prime (723109633) and next prime (723109649).

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

It is not a de Polignac number, because 723109641 - 2³ = 723109633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (723109649) 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, 5016 + ... + 38358.

It is an arithmetic number, because the mean of its divisors is an integer number (120538560).

Almost surely, 2^723109641 is an apocalyptic number.

It is an amenable number.

723109641 is a deficient number, since it is larger than the sum of its proper divisors (241198839).

723109641 is a wasteful number, since it uses less digits than its factorization.

723109641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40575.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 723109641 is about 26890.6980385411. The cubic root of 723109641 is about 897.5694257584.

The spelling of 723109641 in words is "seven hundred twenty-three million, one hundred nine thousand, six hundred forty-one".