7549949 has 4 divisors (see below), whose sum is σ = 8236320. Its totient is φ = 6863580.

The previous prime is 7549931. The next prime is 7549963. The reversal of 7549949 is 9499457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7549949 - 2⁸ = 7549693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7549999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343169 + ... + 343190.

It is an arithmetic number, because the mean of its divisors is an integer number (2059080).

Almost surely, 2^7549949 is an apocalyptic number.

It is an amenable number.

7549949 is a deficient number, since it is larger than the sum of its proper divisors (686371).

7549949 is a wasteful number, since it uses less digits than its factorization.

7549949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686370.

The product of its digits is 408240, while the sum is 47.

The square root of 7549949 is about 2747.7170523909. The cubic root of 7549949 is about 196.1769625573.

The spelling of 7549949 in words is "seven million, five hundred forty-nine thousand, nine hundred forty-nine".