72674643 has 16 divisors (see below), whose sum is σ = 104785920. Its totient is φ = 44628096.

The previous prime is 72674617. The next prime is 72674647. The reversal of 72674643 is 34647627.

It is not a de Polignac number, because 72674643 - 2⁵ = 72674611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72674647) 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, 12763 + ... + 17556.

It is an arithmetic number, because the mean of its divisors is an integer number (6549120).

Almost surely, 2^72674643 is an apocalyptic number.

72674643 is a deficient number, since it is larger than the sum of its proper divisors (32111277).

72674643 is a wasteful number, since it uses less digits than its factorization.

72674643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30386.

The product of its digits is 169344, while the sum is 39.

The square root of 72674643 is about 8524.9424044975. The cubic root of 72674643 is about 417.3120920441.

The spelling of 72674643 in words is "seventy-two million, six hundred seventy-four thousand, six hundred forty-three".