2856901 has 8 divisors (see below), whose sum is σ = 3046464. Its totient is φ = 2669760.

The previous prime is 2856883. The next prime is 2856923. The reversal of 2856901 is 1096582.

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

It is a cyclic number.

It is not a de Polignac number, because 2856901 - 2⁷ = 2856773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2256 + ... + 3286.

It is an arithmetic number, because the mean of its divisors is an integer number (380808).

2^2856901 is an apocalyptic number.

It is an amenable number.

2856901 is a deficient number, since it is larger than the sum of its proper divisors (189563).

2856901 is a wasteful number, since it uses less digits than its factorization.

2856901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2856901 is about 1690.2369656353. The cubic root of 2856901 is about 141.8943371859.

The spelling of 2856901 in words is "two million, eight hundred fifty-six thousand, nine hundred one".