72673479 has 6 divisors (see below), whose sum is σ = 104972816. Its totient is φ = 48448980.

The previous prime is 72673459. The next prime is 72673481. The reversal of 72673479 is 97437627.

It is a happy number.

It is not a de Polignac number, because 72673479 - 2¹⁹ = 72149191 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 (72673459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4037407 + ... + 4037424.

Almost surely, 2^72673479 is an apocalyptic number.

72673479 is a deficient number, since it is larger than the sum of its proper divisors (32299337).

72673479 is a wasteful number, since it uses less digits than its factorization.

72673479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8074837 (or 8074834 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 72673479 is about 8524.8741339682. The cubic root of 72673479 is about 417.3098640600.

The spelling of 72673479 in words is "seventy-two million, six hundred seventy-three thousand, four hundred seventy-nine".