7537949 has 2 divisors, whose sum is σ = 7537950. Its totient is φ = 7537948.

The previous prime is 7537939. The next prime is 7537963. The reversal of 7537949 is 9497357.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5257849 + 2280100 = 2293^2 + 1510^2 .

It is an emirp because it is prime and its reverse (9497357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7537949 - 2¹² = 7533853 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7537939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3768974 + 3768975.

It is an arithmetic number, because the mean of its divisors is an integer number (3768975).

Almost surely, 2^7537949 is an apocalyptic number.

It is an amenable number.

7537949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7537949 is an equidigital number, since it uses as much as digits as its factorization.

7537949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 44.

The square root of 7537949 is about 2745.5325530760. The cubic root of 7537949 is about 196.0729719264.

The spelling of 7537949 in words is "seven million, five hundred thirty-seven thousand, nine hundred forty-nine".