6991701 has 16 divisors (see below), whose sum is σ = 9828864. Its totient is φ = 4412144.

The previous prime is 6991693. The next prime is 6991711. The reversal of 6991701 is 1071996.

It is a cyclic number.

It is not a de Polignac number, because 6991701 - 2³ = 6991693 is a prime.

6991701 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6991711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6910 + ... + 7856.

It is an arithmetic number, because the mean of its divisors is an integer number (614304).

Almost surely, 2^6991701 is an apocalyptic number.

It is an amenable number.

6991701 is a deficient number, since it is larger than the sum of its proper divisors (2837163).

6991701 is a wasteful number, since it uses less digits than its factorization.

6991701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

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

The square root of 6991701 is about 2644.1824823563. The cubic root of 6991701 is about 191.2174911637.

The spelling of 6991701 in words is "six million, nine hundred ninety-one thousand, seven hundred one".