6961651 has 4 divisors (see below), whose sum is σ = 6968304. Its totient is φ = 6955000.

The previous prime is 6961649. The next prime is 6961673. The reversal of 6961651 is 1561696.

6961651 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 brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6961651 - 2¹ = 6961649 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6961601) 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, 1375 + ... + 3976.

It is an arithmetic number, because the mean of its divisors is an integer number (1742076).

Almost surely, 2^6961651 is an apocalyptic number.

6961651 is a deficient number, since it is larger than the sum of its proper divisors (6653).

6961651 is a wasteful number, since it uses less digits than its factorization.

6961651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652.

The product of its digits is 9720, while the sum is 34.

The square root of 6961651 is about 2638.4940780680. The cubic root of 6961651 is about 190.9431498431.

The spelling of 6961651 in words is "six million, nine hundred sixty-one thousand, six hundred fifty-one".