7290649 has 4 divisors (see below), whose sum is σ = 7361536. Its totient is φ = 7219764.

The previous prime is 7290643. The next prime is 7290653. The reversal of 7290649 is 9460927.

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 7290649 - 2³ = 7290641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7290641) 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, 35289 + ... + 35494.

It is an arithmetic number, because the mean of its divisors is an integer number (1840384).

Almost surely, 2^7290649 is an apocalyptic number.

It is an amenable number.

7290649 is a deficient number, since it is larger than the sum of its proper divisors (70887).

7290649 is a wasteful number, since it uses less digits than its factorization.

7290649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70886.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 7290649 is about 2700.1201825104. The cubic root of 7290649 is about 193.9048759573.

The spelling of 7290649 in words is "seven million, two hundred ninety thousand, six hundred forty-nine".