7681967 has 4 divisors (see below), whose sum is σ = 7711440. Its totient is φ = 7652496.

The previous prime is 7681939. The next prime is 7681969. The reversal of 7681967 is 7691867.

7681967 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 an emirpimes, since its reverse is a distinct semiprime: 7691867 = 23 ⋅334429.

It is a cyclic number.

It is not a de Polignac number, because 7681967 - 2⁸ = 7681711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681969) 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, 14342 + ... + 14867.

It is an arithmetic number, because the mean of its divisors is an integer number (1927860).

Almost surely, 2^7681967 is an apocalyptic number.

7681967 is a deficient number, since it is larger than the sum of its proper divisors (29473).

7681967 is a wasteful number, since it uses less digits than its factorization.

7681967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29472.

The product of its digits is 127008, while the sum is 44.

The square root of 7681967 is about 2771.6361593831. The cubic root of 7681967 is about 197.3138083946.

The spelling of 7681967 in words is "seven million, six hundred eighty-one thousand, nine hundred sixty-seven".