72679427 has 8 divisors (see below), whose sum is σ = 76589760. Its totient is φ = 68777640.

The previous prime is 72679421. The next prime is 72679441. The reversal of 72679427 is 72497627.

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 72679427 - 2⁸ = 72679171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72679421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23048 + ... + 26010.

It is an arithmetic number, because the mean of its divisors is an integer number (9573720).

Almost surely, 2^72679427 is an apocalyptic number.

72679427 is a deficient number, since it is larger than the sum of its proper divisors (3910333).

72679427 is a wasteful number, since it uses less digits than its factorization.

72679427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273.

The product of its digits is 296352, while the sum is 44.

The square root of 72679427 is about 8525.2229882860. Note that the first 3 decimals coincide. The cubic root of 72679427 is about 417.3212487328.

The spelling of 72679427 in words is "seventy-two million, six hundred seventy-nine thousand, four hundred twenty-seven".