72866941 has 4 divisors (see below), whose sum is σ = 83276512. Its totient is φ = 62457372.

The previous prime is 72866939. The next prime is 72866977. The reversal of 72866941 is 14966827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72866941 - 2¹ = 72866939 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 (72866041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5204775 + ... + 5204788.

It is an arithmetic number, because the mean of its divisors is an integer number (20819128).

Almost surely, 2^72866941 is an apocalyptic number.

It is an amenable number.

72866941 is a deficient number, since it is larger than the sum of its proper divisors (10409571).

72866941 is a wasteful number, since it uses less digits than its factorization.

72866941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10409570.

The product of its digits is 145152, while the sum is 43.

The square root of 72866941 is about 8536.2135048275. The cubic root of 72866941 is about 417.6798388580.

The spelling of 72866941 in words is "seventy-two million, eight hundred sixty-six thousand, nine hundred forty-one".