4921745 has 4 divisors (see below), whose sum is σ = 5906100. Its totient is φ = 3937392.

The previous prime is 4921717. The next prime is 4921757. The reversal of 4921745 is 5471294.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 528529 + 4393216 = 727^2 + 2096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4921745 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492170 + ... + 492179.

It is an arithmetic number, because the mean of its divisors is an integer number (1476525).

Almost surely, 2^4921745 is an apocalyptic number.

It is an amenable number.

4921745 is a deficient number, since it is larger than the sum of its proper divisors (984355).

4921745 is an equidigital number, since it uses as much as digits as its factorization.

4921745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984354.

The product of its digits is 10080, while the sum is 32.

The square root of 4921745 is about 2218.5006197881. The cubic root of 4921745 is about 170.1008052654.

The spelling of 4921745 in words is "four million, nine hundred twenty-one thousand, seven hundred forty-five".