72941947 has 8 divisors (see below), whose sum is σ = 81968544. Its totient is φ = 64403328.

The previous prime is 72941941. The next prime is 72941959. The reversal of 72941947 is 74914927.

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

It is a cyclic number.

It is not a de Polignac number, because 72941947 - 2¹¹ = 72939899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72941941) 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, 121678 + ... + 122275.

It is an arithmetic number, because the mean of its divisors is an integer number (10246068).

Almost surely, 2^72941947 is an apocalyptic number.

72941947 is a deficient number, since it is larger than the sum of its proper divisors (9026597).

72941947 is a wasteful number, since it uses less digits than its factorization.

72941947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243989.

The product of its digits is 127008, while the sum is 43.

The square root of 72941947 is about 8540.6057747680. The cubic root of 72941947 is about 417.8231034181.

The spelling of 72941947 in words is "seventy-two million, nine hundred forty-one thousand, nine hundred forty-seven".