7623681 has 8 divisors (see below), whose sum is σ = 10946880. Its totient is φ = 4691472.

The previous prime is 7623661. The next prime is 7623689. The reversal of 7623681 is 1863267.

7623681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7623681 - 2¹¹ = 7621633 is a prime.

It is a super-2 number, since 2×7623681² = 116241023979522, which contains 22 as substring.

7623681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7623689) 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, 97701 + ... + 97778.

It is an arithmetic number, because the mean of its divisors is an integer number (1368360).

Almost surely, 2^7623681 is an apocalyptic number.

It is an amenable number.

7623681 is a deficient number, since it is larger than the sum of its proper divisors (3323199).

7623681 is a wasteful number, since it uses less digits than its factorization.

7623681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195495.

The product of its digits is 12096, while the sum is 33.

The square root of 7623681 is about 2761.1014106693. The cubic root of 7623681 is about 196.8135093426.

The spelling of 7623681 in words is "seven million, six hundred twenty-three thousand, six hundred eighty-one".