4661986 has 32 divisors (see below), whose sum is σ = 8356608. Its totient is φ = 1909440.

The previous prime is 4661983. The next prime is 4661989. The reversal of 4661986 is 6891664.

It is an interprime number because it is at equal distance from previous prime (4661983) and next prime (4661989).

It is a super-2 number, since 2×4661986² = 43468226928392, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661983) 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, 45211 + ... + 45313.

It is an arithmetic number, because the mean of its divisors is an integer number (261144).

Almost surely, 2^4661986 is an apocalyptic number.

4661986 is a deficient number, since it is larger than the sum of its proper divisors (3694622).

4661986 is a wasteful number, since it uses less digits than its factorization.

4661986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226.

The product of its digits is 62208, while the sum is 40.

The square root of 4661986 is about 2159.1632638594. The cubic root of 4661986 is about 167.0540420554.

The spelling of 4661986 in words is "four million, six hundred sixty-one thousand, nine hundred eighty-six".