72651 has 8 divisors (see below), whose sum is σ = 98704. Its totient is φ = 47520.

The previous prime is 72649. The next prime is 72661. The reversal of 72651 is 15627.

72651 is nontrivially palindromic in base 12.

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

It is not a de Polignac number, because 72651 - 2¹ = 72649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 72651.

It is not an unprimeable number, because it can be changed into a prime (72661) 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, 16 + ... + 381.

It is an arithmetic number, because the mean of its divisors is an integer number (12338).

2⁷²⁶⁵¹ is an apocalyptic number.

72651 is a deficient number, since it is larger than the sum of its proper divisors (26053).

72651 is a wasteful number, since it uses less digits than its factorization.

72651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its digits is 420, while the sum is 21.

The square root of 72651 is about 269.5384944679. The cubic root of 72651 is about 41.7266832884.

It can be divided in two parts, 726 and 51, that added together give a palindrome (777).

The spelling of 72651 in words is "seventy-two thousand, six hundred fifty-one".