72741694 has 4 divisors (see below), whose sum is σ = 109112544. Its totient is φ = 36370846.

The previous prime is 72741689. The next prime is 72741719. The reversal of 72741694 is 49614727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49614727 = 239 ⋅207593.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18185422 + ... + 18185425.

It is an arithmetic number, because the mean of its divisors is an integer number (27278136).

Almost surely, 2^72741694 is an apocalyptic number.

72741694 is a deficient number, since it is larger than the sum of its proper divisors (36370850).

72741694 is a wasteful number, since it uses less digits than its factorization.

72741694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36370849.

The product of its digits is 84672, while the sum is 40.

The square root of 72741694 is about 8528.8741343744. The cubic root of 72741694 is about 417.4403926041.

The spelling of 72741694 in words is "seventy-two million, seven hundred forty-one thousand, six hundred ninety-four".