4776661 has 4 divisors (see below), whose sum is σ = 4791424. Its totient is φ = 4761900.

The previous prime is 4776647. The next prime is 4776671. The reversal of 4776661 is 1666774.

4776661 = T₁₇₈₃ + T₁₇₈₄ + T₁₇₈₅.

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 a cyclic number.

It is not a de Polignac number, because 4776661 - 2¹¹ = 4774613 is a prime.

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 4776661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4776601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6885 + ... + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (1197856).

Almost surely, 2^4776661 is an apocalyptic number.

4776661 is the 1785-th centered triangular number.

It is an amenable number.

4776661 is a deficient number, since it is larger than the sum of its proper divisors (14763).

4776661 is a wasteful number, since it uses less digits than its factorization.

4776661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14762.

The product of its digits is 42336, while the sum is 37.

The square root of 4776661 is about 2185.5573659824. The cubic root of 4776661 is about 168.4126876996.

The spelling of 4776661 in words is "four million, seven hundred seventy-six thousand, six hundred sixty-one".