7499949 has 4 divisors (see below), whose sum is σ = 9999936. Its totient is φ = 4999964.

The previous prime is 7499939. The next prime is 7499969. The reversal of 7499949 is 9499947.

7499949 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 7499949 - 2⁸ = 7499693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7499939) 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, 1249989 + ... + 1249994.

It is an arithmetic number, because the mean of its divisors is an integer number (2499984).

Almost surely, 2^7499949 is an apocalyptic number.

It is an amenable number.

7499949 is a deficient number, since it is larger than the sum of its proper divisors (2499987).

7499949 is a wasteful number, since it uses less digits than its factorization.

7499949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499986.

The product of its digits is 734832, while the sum is 51.

The square root of 7499949 is about 2738.6034762265. The cubic root of 7499949 is about 195.7429383724.

It can be divided in two parts, 7499 and 949, that added together give a palindrome (8448).

The spelling of 7499949 in words is "seven million, four hundred ninety-nine thousand, nine hundred forty-nine".