4256791 has 16 divisors (see below), whose sum is σ = 5402880. Its totient is φ = 3257280.

The previous prime is 4256761. The next prime is 4256797. The reversal of 4256791 is 1976524.

It is a cyclic number.

It is not a de Polignac number, because 4256791 - 2²¹ = 2159639 is a prime.

4256791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (337680).

Almost surely, 2^4256791 is an apocalyptic number.

4256791 is a deficient number, since it is larger than the sum of its proper divisors (1146089).

4256791 is a wasteful number, since it uses less digits than its factorization.

4256791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014.

The product of its digits is 15120, while the sum is 34.

The square root of 4256791 is about 2063.1992148118. The cubic root of 4256791 is about 162.0668194608.

The spelling of 4256791 in words is "four million, two hundred fifty-six thousand, seven hundred ninety-one".