7681049 has 4 divisors (see below), whose sum is σ = 7728336. Its totient is φ = 7633764.

The previous prime is 7681039. The next prime is 7681109. The reversal of 7681049 is 9401867.

7681049 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 9401867 = 17 ⋅553051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7681049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7681039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23399 + ... + 23724.

It is an arithmetic number, because the mean of its divisors is an integer number (1932084).

Almost surely, 2^7681049 is an apocalyptic number.

It is an amenable number.

7681049 is a deficient number, since it is larger than the sum of its proper divisors (47287).

7681049 is a wasteful number, since it uses less digits than its factorization.

7681049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47286.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 7681049 is about 2771.4705482830. The cubic root of 7681049 is about 197.3059483724.

The spelling of 7681049 in words is "seven million, six hundred eighty-one thousand, forty-nine".