72714661 has 8 divisors (see below), whose sum is σ = 80339904. Its totient is φ = 65461440.

The previous prime is 72714659. The next prime is 72714667. The reversal of 72714661 is 16641727.

It is a happy number.

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 72714661 - 2¹ = 72714659 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 (72714667) 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, 92595 + ... + 93376.

It is an arithmetic number, because the mean of its divisors is an integer number (10042488).

Almost surely, 2^72714661 is an apocalyptic number.

It is an amenable number.

72714661 is a deficient number, since it is larger than the sum of its proper divisors (7625243).

72714661 is a wasteful number, since it uses less digits than its factorization.

72714661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186011.

The product of its digits is 14112, while the sum is 34.

The square root of 72714661 is about 8527.2891941109. The cubic root of 72714661 is about 417.3886750644.

The spelling of 72714661 in words is "seventy-two million, seven hundred fourteen thousand, six hundred sixty-one".