7263749 has 2 divisors, whose sum is σ = 7263750. Its totient is φ = 7263748.

The previous prime is 7263731. The next prime is 7263787. The reversal of 7263749 is 9473627.

It is an a-pointer prime, because the next prime (7263787) can be obtained adding 7263749 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5373124 + 1890625 = 2318^2 + 1375^2 .

It is an emirp because it is prime and its reverse (9473627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7263749 - 2⁸ = 7263493 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7263799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3631874 + 3631875.

It is an arithmetic number, because the mean of its divisors is an integer number (3631875).

Almost surely, 2^7263749 is an apocalyptic number.

It is an amenable number.

7263749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7263749 is an equidigital number, since it uses as much as digits as its factorization.

7263749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 7263749 is about 2695.1343194728. The cubic root of 7263749 is about 193.6661011705. Note that the first 3 decimals are identical.

The spelling of 7263749 in words is "seven million, two hundred sixty-three thousand, seven hundred forty-nine".