7067981 has 4 divisors (see below), whose sum is σ = 7440000. Its totient is φ = 6695964.

The previous prime is 7067959. The next prime is 7067987. The reversal of 7067981 is 1897607.

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: 1897607 = 701 ⋅2707.

It is a cyclic number.

It is not a de Polignac number, because 7067981 - 2⁶ = 7067917 is a prime.

It is a super-2 number, since 2×7067981² = 99912710832722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7067987) 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, 185981 + ... + 186018.

It is an arithmetic number, because the mean of its divisors is an integer number (1860000).

Almost surely, 2^7067981 is an apocalyptic number.

It is an amenable number.

7067981 is a deficient number, since it is larger than the sum of its proper divisors (372019).

7067981 is a wasteful number, since it uses less digits than its factorization.

7067981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372018.

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

The square root of 7067981 is about 2658.5674714026. The cubic root of 7067981 is about 191.9103766465.

The spelling of 7067981 in words is "seven million, sixty-seven thousand, nine hundred eighty-one".