73754821 has 4 divisors (see below), whose sum is σ = 84291232. Its totient is φ = 63218412.

The previous prime is 73754819. The next prime is 73754831. The reversal of 73754821 is 12845737.

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 73754821 - 2¹ = 73754819 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 (73754831) 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, 5268195 + ... + 5268208.

It is an arithmetic number, because the mean of its divisors is an integer number (21072808).

Almost surely, 2^73754821 is an apocalyptic number.

It is an amenable number.

73754821 is a deficient number, since it is larger than the sum of its proper divisors (10536411).

73754821 is a wasteful number, since it uses less digits than its factorization.

73754821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536410.

The product of its digits is 47040, while the sum is 37.

The square root of 73754821 is about 8588.0627035438. The cubic root of 73754821 is about 419.3694639177.

The spelling of 73754821 in words is "seventy-three million, seven hundred fifty-four thousand, eight hundred twenty-one".