4949661 has 4 divisors (see below), whose sum is σ = 6599552. Its totient is φ = 3299772.

The previous prime is 4949657. The next prime is 4949683. The reversal of 4949661 is 1669494.

4949661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 4949661 - 2² = 4949657 is a prime.

It is a D-number.

It is a Duffinian number.

4949661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4949611) 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, 824941 + ... + 824946.

It is an arithmetic number, because the mean of its divisors is an integer number (1649888).

Almost surely, 2^4949661 is an apocalyptic number.

It is an amenable number.

4949661 is a deficient number, since it is larger than the sum of its proper divisors (1649891).

4949661 is a wasteful number, since it uses less digits than its factorization.

4949661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649890.

The product of its digits is 46656, while the sum is 39.

The square root of 4949661 is about 2224.7833602398. The cubic root of 4949661 is about 170.4218014712.

The spelling of 4949661 in words is "four million, nine hundred forty-nine thousand, six hundred sixty-one".