72679426 has 8 divisors (see below), whose sum is σ = 110806524. Its totient is φ = 35743920.

The previous prime is 72679421. The next prime is 72679441. The reversal of 72679426 is 62497627.

It can be written as a sum of positive squares in 2 ways, for example, as 53275401 + 19404025 = 7299^2 + 4405^2 .

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

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297745 + ... + 297988.

Almost surely, 2^72679426 is an apocalyptic number.

72679426 is a deficient number, since it is larger than the sum of its proper divisors (38127098).

72679426 is a wasteful number, since it uses less digits than its factorization.

72679426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595796.

The product of its digits is 254016, while the sum is 43.

The square root of 72679426 is about 8525.2229296365. Note that the first 3 decimals coincide. The cubic root of 72679426 is about 417.3212468189.

The spelling of 72679426 in words is "seventy-two million, six hundred seventy-nine thousand, four hundred twenty-six".