4056651 has 12 divisors (see below), whose sum is σ = 5878080. Its totient is φ = 2695920.

The previous prime is 4056641. The next prime is 4056697. The reversal of 4056651 is 1566504.

It is a happy number.

4056651 is a `hidden beast` number, since 4 + 0 + 5 + 6 + 651 = 666.

It is not a de Polignac number, because 4056651 - 2¹⁰ = 4055627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4056601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3841 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (489840).

Almost surely, 2^4056651 is an apocalyptic number.

4056651 is a deficient number, since it is larger than the sum of its proper divisors (1821429).

4056651 is a wasteful number, since it uses less digits than its factorization.

4056651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 4056651 is about 2014.1129561174. The cubic root of 4056651 is about 159.4859937321.

It can be divided in two parts, 405 and 6651, that added together give a square (7056 = 84²).

The spelling of 4056651 in words is "four million, fifty-six thousand, six hundred fifty-one".