754073821 has 2 divisors, whose sum is σ = 754073822. Its totient is φ = 754073820.

The previous prime is 754073819. The next prime is 754073839. The reversal of 754073821 is 128370457.

754073821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 728460100 + 25613721 = 26990^2 + 5061^2 .

It is a cyclic number.

It is not a de Polignac number, because 754073821 - 2¹ = 754073819 is a prime.

Together with 754073819, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (754073851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377036910 + 377036911.

It is an arithmetic number, because the mean of its divisors is an integer number (377036911).

Almost surely, 2^754073821 is an apocalyptic number.

It is an amenable number.

754073821 is a deficient number, since it is larger than the sum of its proper divisors (1).

754073821 is an equidigital number, since it uses as much as digits as its factorization.

754073821 is an odious number, because the sum of its binary digits is odd.

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

The square root of 754073821 is about 27460.4046037199. The cubic root of 754073821 is about 910.2023544683.

The spelling of 754073821 in words is "seven hundred fifty-four million, seventy-three thousand, eight hundred twenty-one".