7914981 has 4 divisors (see below), whose sum is σ = 10553312. Its totient is φ = 5276652.

The previous prime is 7914961. The next prime is 7914997. The reversal of 7914981 is 1894197.

It is a happy number.

7914981 is digitally balanced in base 3, 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: 1894197 = 3 ⋅631399.

It is not a de Polignac number, because 7914981 - 2⁷ = 7914853 is a prime.

It is a super-2 number, since 2×7914981² = 125293848460722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7914961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319161 + ... + 1319166.

It is an arithmetic number, because the mean of its divisors is an integer number (2638328).

Almost surely, 2^7914981 is an apocalyptic number.

It is an amenable number.

7914981 is a deficient number, since it is larger than the sum of its proper divisors (2638331).

7914981 is a wasteful number, since it uses less digits than its factorization.

7914981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638330.

The product of its digits is 18144, while the sum is 39.

The square root of 7914981 is about 2813.3576025809. The cubic root of 7914981 is about 199.2889836072.

The spelling of 7914981 in words is "seven million, nine hundred fourteen thousand, nine hundred eighty-one".