7449643 has 2 divisors, whose sum is σ = 7449644. Its totient is φ = 7449642.

The previous prime is 7449623. The next prime is 7449667. The reversal of 7449643 is 3469447.

7449643 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 is an emirp because it is prime and its reverse (3469447) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7449643 is a prime.

It is a d-powerful number, because it can be written as 7⁸ + 4² + 4⁵ + 9 + 6⁸ + 4⁶ + 3⁴ .

It is not a weakly prime, because it can be changed into another prime (7449613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3724821 + 3724822.

It is an arithmetic number, because the mean of its divisors is an integer number (3724822).

Almost surely, 2^7449643 is an apocalyptic number.

7449643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7449643 is an equidigital number, since it uses as much as digits as its factorization.

7449643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 7449643 is about 2729.4034146678. The cubic root of 7449643 is about 195.3043068094.

The spelling of 7449643 in words is "seven million, four hundred forty-nine thousand, six hundred forty-three".