8972145723 has 8 divisors (see below), whose sum is σ = 11967616336. Its totient is φ = 5979052800.

The previous prime is 8972145719. The next prime is 8972145727. The reversal of 8972145723 is 3275412798.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8972145719) and next prime (8972145727).

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

It is not a de Polignac number, because 8972145723 - 2² = 8972145719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8972145727) 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, 585598 + ... + 600723.

It is an arithmetic number, because the mean of its divisors is an integer number (1495952042).

Almost surely, 2^8972145723 is an apocalyptic number.

8972145723 is a deficient number, since it is larger than the sum of its proper divisors (2995470613).

8972145723 is a wasteful number, since it uses less digits than its factorization.

8972145723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188845.

The product of its digits is 846720, while the sum is 48.

The square root of 8972145723 is about 94721.4111117439. The cubic root of 8972145723 is about 2077.9357080001.

The spelling of 8972145723 in words is "eight billion, nine hundred seventy-two million, one hundred forty-five thousand, seven hundred twenty-three".