7980681 has 8 divisors (see below), whose sum is σ = 10679904. Its totient is φ = 5300960.

The previous prime is 7980677. The next prime is 7980683. The reversal of 7980681 is 1860897.

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

It is a cyclic number.

It is not a de Polignac number, because 7980681 - 2² = 7980677 is a prime.

It is a super-2 number, since 2×7980681² = 127382538447522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7980683) 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, 3891 + ... + 5576.

It is an arithmetic number, because the mean of its divisors is an integer number (1334988).

Almost surely, 2^7980681 is an apocalyptic number.

It is an amenable number.

7980681 is a deficient number, since it is larger than the sum of its proper divisors (2699223).

7980681 is a wasteful number, since it uses less digits than its factorization.

7980681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9751.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 7980681 is about 2825.0099114870. The cubic root of 7980681 is about 199.8388785676.

The spelling of 7980681 in words is "seven million, nine hundred eighty thousand, six hundred eighty-one".