73820751 has 4 divisors (see below), whose sum is σ = 98427672. Its totient is φ = 49213832.

The previous prime is 73820713. The next prime is 73820807. The reversal of 73820751 is 15702837.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73820751 - 2¹⁰ = 73819727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73820701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12303456 + ... + 12303461.

It is an arithmetic number, because the mean of its divisors is an integer number (24606918).

Almost surely, 2^73820751 is an apocalyptic number.

73820751 is a deficient number, since it is larger than the sum of its proper divisors (24606921).

73820751 is a wasteful number, since it uses less digits than its factorization.

73820751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24606920.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 73820751 is about 8591.9003136675. The cubic root of 73820751 is about 419.4943858953.

The spelling of 73820751 in words is "seventy-three million, eight hundred twenty thousand, seven hundred fifty-one".