7538731 has 2 divisors, whose sum is σ = 7538732. Its totient is φ = 7538730.

The previous prime is 7538719. The next prime is 7538737. The reversal of 7538731 is 1378357.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7538731 - 2⁷ = 7538603 is a prime.

It is a super-3 number, since 3×7538731³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (7538737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3769365 + 3769366.

It is an arithmetic number, because the mean of its divisors is an integer number (3769366).

Almost surely, 2^7538731 is an apocalyptic number.

7538731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7538731 is an equidigital number, since it uses as much as digits as its factorization.

7538731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 7538731 is about 2745.6749625547. The cubic root of 7538731 is about 196.0797520095.

The spelling of 7538731 in words is "seven million, five hundred thirty-eight thousand, seven hundred thirty-one".