7694640 has 60 divisors (see below), whose sum is σ = 25843584. Its totient is φ = 2051712.

The previous prime is 7694633. The next prime is 7694647. The reversal of 7694640 is 464967.

7694640 is a `hidden beast` number, since 7 + 6 + 9 + 4 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (7694633) and next prime (7694647).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7694595 and 7694604.

It is not an unprimeable number, because it can be changed into a prime (7694647) 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 11 ways as a sum of consecutive naturals, for example, 4624 + ... + 6063.

Almost surely, 2^7694640 is an apocalyptic number.

It is an amenable number.

7694640 is an abundant number, since it is smaller than the sum of its proper divisors (18148944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7694640 is a wasteful number, since it uses less digits than its factorization.

7694640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706 (or 10697 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 7694640 is about 2773.9214120086. The cubic root of 7694640 is about 197.4222521516.

The spelling of 7694640 in words is "seven million, six hundred ninety-four thousand, six hundred forty".