4918661 has 16 divisors (see below), whose sum is σ = 5883840. Its totient is φ = 4058880.

The previous prime is 4918649. The next prime is 4918673. The reversal of 4918661 is 1668194.

It is an interprime number because it is at equal distance from previous prime (4918649) and next prime (4918673).

It is a cyclic number.

It is not a de Polignac number, because 4918661 - 2¹⁸ = 4656517 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 (4918601) 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, 4970 + ... + 5876.

It is an arithmetic number, because the mean of its divisors is an integer number (367740).

Almost surely, 2^4918661 is an apocalyptic number.

It is an amenable number.

4918661 is a deficient number, since it is larger than the sum of its proper divisors (965179).

4918661 is a wasteful number, since it uses less digits than its factorization.

4918661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its digits is 10368, while the sum is 35.

The square root of 4918661 is about 2217.8054468325. The cubic root of 4918661 is about 170.0652690553.

The spelling of 4918661 in words is "four million, nine hundred eighteen thousand, six hundred sixty-one".