7371681 has 4 divisors (see below), whose sum is σ = 9828912. Its totient is φ = 4914452.

The previous prime is 7371673. The next prime is 7371697. The reversal of 7371681 is 1861737.

7371681 is digitally balanced in base 4, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1861737 = 3 ⋅620579.

It is a cyclic number.

It is not a de Polignac number, because 7371681 - 2³ = 7371673 is a prime.

It is a super-2 number, since 2×7371681² = 108683361531522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7371631) 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, 1228611 + ... + 1228616.

It is an arithmetic number, because the mean of its divisors is an integer number (2457228).

Almost surely, 2^7371681 is an apocalyptic number.

It is an amenable number.

7371681 is a deficient number, since it is larger than the sum of its proper divisors (2457231).

7371681 is a wasteful number, since it uses less digits than its factorization.

7371681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457230.

The product of its digits is 7056, while the sum is 33.

The square root of 7371681 is about 2715.0839766018. The cubic root of 7371681 is about 194.6206167397.

Adding to 7371681 its product of digits (7056), we get a palindrome (7378737).

The spelling of 7371681 in words is "seven million, three hundred seventy-one thousand, six hundred eighty-one".