7916971 has 4 divisors (see below), whose sum is σ = 8190000. Its totient is φ = 7643944.

The previous prime is 7916963. The next prime is 7917011. The reversal of 7916971 is 1796197.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7916971 - 2³ = 7916963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7916911) 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, 136471 + ... + 136528.

It is an arithmetic number, because the mean of its divisors is an integer number (2047500).

Almost surely, 2^7916971 is an apocalyptic number.

7916971 is a deficient number, since it is larger than the sum of its proper divisors (273029).

7916971 is a wasteful number, since it uses less digits than its factorization.

7916971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273028.

The product of its digits is 23814, while the sum is 40.

The square root of 7916971 is about 2813.7112502885. The cubic root of 7916971 is about 199.3056840830.

The spelling of 7916971 in words is "seven million, nine hundred sixteen thousand, nine hundred seventy-one".