4757661 has 6 divisors (see below), whose sum is σ = 6872190. Its totient is φ = 3171768.

The previous prime is 4757659. The next prime is 4757677. The reversal of 4757661 is 1667574.

It can be written as a sum of positive squares in only one way, i.e., 4756761 + 900 = 2181^2 + 30^2 .

It is not a de Polignac number, because 4757661 - 2¹ = 4757659 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4757461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264306 + ... + 264323.

It is an arithmetic number, because the mean of its divisors is an integer number (1145365).

Almost surely, 2^4757661 is an apocalyptic number.

It is an amenable number.

4757661 is a deficient number, since it is larger than the sum of its proper divisors (2114529).

4757661 is a wasteful number, since it uses less digits than its factorization.

4757661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528635 (or 528632 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 4757661 is about 2181.2063176142. The cubic root of 4757661 is about 168.1890940563.

The spelling of 4757661 in words is "four million, seven hundred fifty-seven thousand, six hundred sixty-one".