6921654 has 8 divisors (see below), whose sum is σ = 13843320. Its totient is φ = 2307216.

The previous prime is 6921653. The next prime is 6921671. The reversal of 6921654 is 4561296.

It is a sphenic number, since it is the product of 3 distinct primes.

6921654 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6921653) 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, 576799 + ... + 576810.

It is an arithmetic number, because the mean of its divisors is an integer number (1730415).

Almost surely, 2^6921654 is an apocalyptic number.

6921654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6921654 is a wasteful number, since it uses less digits than its factorization.

6921654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153614.

The product of its digits is 12960, while the sum is 33.

The square root of 6921654 is about 2630.9036470384. The cubic root of 6921654 is about 190.5767699895.

It can be divided in two parts, 692 and 1654, that added together give a triangular number (2346 = T₆₈).

The spelling of 6921654 in words is "six million, nine hundred twenty-one thousand, six hundred fifty-four".