7681494 has 16 divisors (see below), whose sum is σ = 16031232. Its totient is φ = 2449128.

The previous prime is 7681493. The next prime is 7681507. The reversal of 7681494 is 4941867.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27694 + ... + 27969.

It is an arithmetic number, because the mean of its divisors is an integer number (1001952).

Almost surely, 2^7681494 is an apocalyptic number.

7681494 is an abundant number, since it is smaller than the sum of its proper divisors (8349738).

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

7681494 is a wasteful number, since it uses less digits than its factorization.

7681494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55691.

The product of its digits is 48384, while the sum is 39.

The square root of 7681494 is about 2771.5508294094. The cubic root of 7681494 is about 197.3097585921.

The spelling of 7681494 in words is "seven million, six hundred eighty-one thousand, four hundred ninety-four".