73944157 has 8 divisors (see below), whose sum is σ = 85698432. Its totient is φ = 62487600.

The previous prime is 73944151. The next prime is 73944161. The reversal of 73944157 is 75144937.

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

It is not a de Polignac number, because 73944157 - 2¹¹ = 73942109 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 (73944151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73894 + ... + 74887.

It is an arithmetic number, because the mean of its divisors is an integer number (10712304).

Almost surely, 2^73944157 is an apocalyptic number.

It is an amenable number.

73944157 is a deficient number, since it is larger than the sum of its proper divisors (11754275).

73944157 is a wasteful number, since it uses less digits than its factorization.

73944157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148859.

The product of its digits is 105840, while the sum is 40.

The square root of 73944157 is about 8599.0788460160. The cubic root of 73944157 is about 419.7280117315.

The spelling of 73944157 in words is "seventy-three million, nine hundred forty-four thousand, one hundred fifty-seven".