7530649 has 4 divisors (see below), whose sum is σ = 8606464. Its totient is φ = 6454836.

The previous prime is 7530641. The next prime is 7530671. The reversal of 7530649 is 9460357.

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 7530649 - 2³ = 7530641 is a prime.

It is a super-2 number, since 2×7530649² = 113421348722402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7530641) 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, 537897 + ... + 537910.

It is an arithmetic number, because the mean of its divisors is an integer number (2151616).

Almost surely, 2^7530649 is an apocalyptic number.

It is an amenable number.

7530649 is a deficient number, since it is larger than the sum of its proper divisors (1075815).

7530649 is a wasteful number, since it uses less digits than its factorization.

7530649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075814.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 7530649 is about 2744.2027986284. The cubic root of 7530649 is about 196.0096569586.

The spelling of 7530649 in words is "seven million, five hundred thirty thousand, six hundred forty-nine".