72924811 has 2 divisors, whose sum is σ = 72924812. Its totient is φ = 72924810.

The previous prime is 72924809. The next prime is 72924823. The reversal of 72924811 is 11842927.

It is a weak prime.

It is an emirp because it is prime and its reverse (11842927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72924811 - 2¹ = 72924809 is a prime.

Together with 72924809, it forms a pair of twin primes.

It is equal to p_4279903 and since 72924811 and 4279903 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (72924011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36462405 + 36462406.

It is an arithmetic number, because the mean of its divisors is an integer number (36462406).

Almost surely, 2^72924811 is an apocalyptic number.

72924811 is a deficient number, since it is larger than the sum of its proper divisors (1).

72924811 is an equidigital number, since it uses as much as digits as its factorization.

72924811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 34.

The square root of 72924811 is about 8539.6025083138. The cubic root of 72924811 is about 417.7903816087.

The spelling of 72924811 in words is "seventy-two million, nine hundred twenty-four thousand, eight hundred eleven".