7646740 has 24 divisors (see below), whose sum is σ = 16904160. Its totient is φ = 2897568.

The previous prime is 7646731. The next prime is 7646747. The reversal of 7646740 is 476467.

It is a junction number, because it is equal to n+sod(n) for n = 7646696 and 7646705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7646747) 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 7 ways as a sum of consecutive naturals, for example, 9682 + ... + 10441.

It is an arithmetic number, because the mean of its divisors is an integer number (704340).

Almost surely, 2^7646740 is an apocalyptic number.

It is an amenable number.

7646740 is an abundant number, since it is smaller than the sum of its proper divisors (9257420).

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

7646740 is a wasteful number, since it uses less digits than its factorization.

7646740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20151 (or 20149 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 7646740 is about 2765.2739466462. The cubic root of 7646740 is about 197.0117405631.

The spelling of 7646740 in words is "seven million, six hundred forty-six thousand, seven hundred forty".