4657861 has 4 divisors (see below), whose sum is σ = 5016172. Its totient is φ = 4299552.

The previous prime is 4657853. The next prime is 4657879. The reversal of 4657861 is 1687564.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2117025 + 2540836 = 1455^2 + 1594^2 .

It is a cyclic number.

It is not a de Polignac number, because 4657861 - 2³ = 4657853 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4657861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4657811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179136 + ... + 179161.

It is an arithmetic number, because the mean of its divisors is an integer number (1254043).

Almost surely, 2^4657861 is an apocalyptic number.

It is an amenable number.

4657861 is a deficient number, since it is larger than the sum of its proper divisors (358311).

4657861 is a wasteful number, since it uses less digits than its factorization.

4657861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358310.

The product of its digits is 40320, while the sum is 37.

The square root of 4657861 is about 2158.2078213184. The cubic root of 4657861 is about 167.0047568177.

The spelling of 4657861 in words is "four million, six hundred fifty-seven thousand, eight hundred sixty-one".