4996661 has 4 divisors (see below), whose sum is σ = 5001792. Its totient is φ = 4991532.

The previous prime is 4996637. The next prime is 4996679. The reversal of 4996661 is 1666994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4996661 - 2²² = 802357 is a prime.

It is a super-2 number, since 2×4996661² = 49933242297842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4996361) 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, 605 + ... + 3218.

It is an arithmetic number, because the mean of its divisors is an integer number (1250448).

Almost surely, 2^4996661 is an apocalyptic number.

It is an amenable number.

4996661 is a deficient number, since it is larger than the sum of its proper divisors (5131).

4996661 is a wasteful number, since it uses less digits than its factorization.

4996661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130.

The product of its digits is 69984, while the sum is 41.

The square root of 4996661 is about 2235.3212297117. The cubic root of 4996661 is about 170.9595221269.

The spelling of 4996661 in words is "four million, nine hundred ninety-six thousand, six hundred sixty-one".