4001654 has 8 divisors (see below), whose sum is σ = 6038928. Its totient is φ = 1988680.

The previous prime is 4001639. The next prime is 4001689. The reversal of 4001654 is 4561004.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5657 + ... + 6324.

It is an arithmetic number, because the mean of its divisors is an integer number (754866).

Almost surely, 2^4001654 is an apocalyptic number.

4001654 is a deficient number, since it is larger than the sum of its proper divisors (2037274).

4001654 is a wasteful number, since it uses less digits than its factorization.

4001654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12150.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4001654 is about 2000.4134572633. The cubic root of 4001654 is about 158.7619818596.

Adding to 4001654 its reverse (4561004), we get a palindrome (8562658).

The spelling of 4001654 in words is "four million, one thousand, six hundred fifty-four".