73813951 has 2 divisors, whose sum is σ = 73813952. Its totient is φ = 73813950.

The previous prime is 73813939. The next prime is 73813979. The reversal of 73813951 is 15931837.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73813951 - 2¹⁹ = 73289663 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73813951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73813921) 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 as a sum of consecutive naturals, namely, 36906975 + 36906976.

It is an arithmetic number, because the mean of its divisors is an integer number (36906976).

Almost surely, 2^73813951 is an apocalyptic number.

73813951 is a deficient number, since it is larger than the sum of its proper divisors (1).

73813951 is an equidigital number, since it uses as much as digits as its factorization.

73813951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 73813951 is about 8591.5045830169. The cubic root of 73813951 is about 419.4815049217.

The spelling of 73813951 in words is "seventy-three million, eight hundred thirteen thousand, nine hundred fifty-one".