7537489 has 2 divisors, whose sum is σ = 7537490. Its totient is φ = 7537488.

The previous prime is 7537483. The next prime is 7537493. The reversal of 7537489 is 9847357.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6718464 + 819025 = 2592^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 7537489 - 2¹³ = 7529297 is a prime.

It is not a weakly prime, because it can be changed into another prime (7537483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3768744 + 3768745.

It is an arithmetic number, because the mean of its divisors is an integer number (3768745).

Almost surely, 2^7537489 is an apocalyptic number.

It is an amenable number.

7537489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7537489 is an equidigital number, since it uses as much as digits as its factorization.

7537489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 7537489 is about 2745.4487793437. The cubic root of 7537489 is about 196.0689834231.

The spelling of 7537489 in words is "seven million, five hundred thirty-seven thousand, four hundred eighty-nine".