7451993 has 2 divisors, whose sum is σ = 7451994. Its totient is φ = 7451992.

The previous prime is 7451987. The next prime is 7452007. The reversal of 7451993 is 3991547.

It is a happy number.

7451993 is digitally balanced in base 3, 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., 4804864 + 2647129 = 2192^2 + 1627^2 .

It is a cyclic number.

It is not a de Polignac number, because 7451993 - 2¹⁰ = 7450969 is a prime.

It is not a weakly prime, because it can be changed into another prime (7451963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3725996 + 3725997.

It is an arithmetic number, because the mean of its divisors is an integer number (3725997).

Almost surely, 2^7451993 is an apocalyptic number.

It is an amenable number.

7451993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7451993 is an equidigital number, since it uses as much as digits as its factorization.

7451993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 7451993 is about 2729.8338777296. The cubic root of 7451993 is about 195.3248409866.

The spelling of 7451993 in words is "seven million, four hundred fifty-one thousand, nine hundred ninety-three".