7286649 has 4 divisors (see below), whose sum is σ = 9715536. Its totient is φ = 4857764.

The previous prime is 7286621. The next prime is 7286681. The reversal of 7286649 is 9466827.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9466827 = 3 ⋅3155609.

It is a cyclic number.

It is not a de Polignac number, because 7286649 - 2⁹ = 7286137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7286649.

It is not an unprimeable number, because it can be changed into a prime (7286689) 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, 1214439 + ... + 1214444.

It is an arithmetic number, because the mean of its divisors is an integer number (2428884).

Almost surely, 2^7286649 is an apocalyptic number.

It is an amenable number.

7286649 is a deficient number, since it is larger than the sum of its proper divisors (2428887).

7286649 is a wasteful number, since it uses less digits than its factorization.

7286649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428886.

The product of its digits is 145152, while the sum is 42.

The square root of 7286649 is about 2699.3793731152. The cubic root of 7286649 is about 193.8694076291.

The spelling of 7286649 in words is "seven million, two hundred eighty-six thousand, six hundred forty-nine".