6073721 has 2 divisors, whose sum is σ = 6073722. Its totient is φ = 6073720.

The previous prime is 6073693. The next prime is 6073723. The reversal of 6073721 is 1273706.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3748096 + 2325625 = 1936^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 6073721 - 2⁶ = 6073657 is a prime.

Together with 6073723, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6073723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3036860 + 3036861.

It is an arithmetic number, because the mean of its divisors is an integer number (3036861).

Almost surely, 2^6073721 is an apocalyptic number.

It is an amenable number.

6073721 is a deficient number, since it is larger than the sum of its proper divisors (1).

6073721 is an equidigital number, since it uses as much as digits as its factorization.

6073721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 6073721 is about 2464.4920369115. The cubic root of 6073721 is about 182.4532538057.

The spelling of 6073721 in words is "six million, seventy-three thousand, seven hundred twenty-one".