4947749 has 4 divisors (see below), whose sum is σ = 5021664. Its totient is φ = 4873836.

The previous prime is 4947743. The next prime is 4947763. The reversal of 4947749 is 9477494.

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 4947749 - 2²⁰ = 3899173 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947743) 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, 36857 + ... + 36990.

It is an arithmetic number, because the mean of its divisors is an integer number (1255416).

Almost surely, 2^4947749 is an apocalyptic number.

It is an amenable number.

4947749 is a deficient number, since it is larger than the sum of its proper divisors (73915).

4947749 is an equidigital number, since it uses as much as digits as its factorization.

4947749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73914.

The product of its digits is 254016, while the sum is 44.

The square root of 4947749 is about 2224.3536139742. The cubic root of 4947749 is about 170.3998546179.

The spelling of 4947749 in words is "four million, nine hundred forty-seven thousand, seven hundred forty-nine".