4213657 has 12 divisors (see below), whose sum is σ = 4951476. Its totient is φ = 3575040.

The previous prime is 4213639. The next prime is 4213673. The reversal of 4213657 is 7563124.

It can be written as a sum of positive squares in 2 ways, for example, as 35721 + 4177936 = 189^2 + 2044^2 .

It is not a de Polignac number, because 4213657 - 2¹¹ = 4211609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4213357) 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, 5157 + ... + 5917.

It is an arithmetic number, because the mean of its divisors is an integer number (412623).

Almost surely, 2^4213657 is an apocalyptic number.

It is an amenable number.

4213657 is a deficient number, since it is larger than the sum of its proper divisors (737819).

4213657 is a wasteful number, since it uses less digits than its factorization.

4213657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 881 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 4213657 is about 2052.7194157994. The cubic root of 4213657 is about 161.5175531343.

The spelling of 4213657 in words is "four million, two hundred thirteen thousand, six hundred fifty-seven".