72327651 has 16 divisors (see below), whose sum is σ = 105390720. Its totient is φ = 43757120.

The previous prime is 72327631. The next prime is 72327659. The reversal of 72327651 is 15672327.

It is not a de Polignac number, because 72327651 - 2⁷ = 72327523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (72327659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20935 + ... + 24143.

It is an arithmetic number, because the mean of its divisors is an integer number (6586920).

Almost surely, 2^72327651 is an apocalyptic number.

72327651 is a deficient number, since it is larger than the sum of its proper divisors (33063069).

72327651 is a wasteful number, since it uses less digits than its factorization.

72327651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906.

The product of its digits is 17640, while the sum is 33.

The square root of 72327651 is about 8504.5664792510. The cubic root of 72327651 is about 416.6468667569.

Adding to 72327651 its reverse (15672327), we get a palindrome (87999978).

It can be divided in two parts, 723276 and 51, that added together give a palindrome (723327).

The spelling of 72327651 in words is "seventy-two million, three hundred twenty-seven thousand, six hundred fifty-one".