7670981 has 4 divisors (see below), whose sum is σ = 7918464. Its totient is φ = 7423500.

The previous prime is 7670969. The next prime is 7670987. The reversal of 7670981 is 1890767.

It is a happy number.

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: 1890767 = 271 ⋅6977.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7670981 is a prime.

It is a super-2 number, since 2×7670981² = 117687899004722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7670987) 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 3 ways as a sum of consecutive naturals, for example, 123695 + ... + 123756.

It is an arithmetic number, because the mean of its divisors is an integer number (1979616).

Almost surely, 2^7670981 is an apocalyptic number.

It is an amenable number.

7670981 is a deficient number, since it is larger than the sum of its proper divisors (247483).

7670981 is a wasteful number, since it uses less digits than its factorization.

7670981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247482.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 7670981 is about 2769.6535884475. The cubic root of 7670981 is about 197.2197038655.

The spelling of 7670981 in words is "seven million, six hundred seventy thousand, nine hundred eighty-one".