7016991 has 4 divisors (see below), whose sum is σ = 9355992. Its totient is φ = 4677992.

The previous prime is 7016983. The next prime is 7017007. The reversal of 7016991 is 1996107.

7016991 is digitally balanced in base 4, 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 an emirpimes, since its reverse is a distinct semiprime: 1996107 = 3 ⋅665369.

It is a cyclic number.

It is not a de Polignac number, because 7016991 - 2³ = 7016983 is a prime.

It is a D-number.

7016991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7016921) 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, 1169496 + ... + 1169501.

It is an arithmetic number, because the mean of its divisors is an integer number (2338998).

Almost surely, 2^7016991 is an apocalyptic number.

7016991 is a deficient number, since it is larger than the sum of its proper divisors (2339001).

7016991 is a wasteful number, since it uses less digits than its factorization.

7016991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339000.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 7016991 is about 2648.9603621043. The cubic root of 7016991 is about 191.4477675697.

The spelling of 7016991 in words is "seven million, sixteen thousand, nine hundred ninety-one".