4700921 has 4 divisors (see below), whose sum is σ = 4771152. Its totient is φ = 4630692.

The previous prime is 4700879. The next prime is 4700939. The reversal of 4700921 is 1290074.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1290074 = 2 ⋅645037.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4700921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4700951) 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, 35015 + ... + 35148.

It is an arithmetic number, because the mean of its divisors is an integer number (1192788).

Almost surely, 2^4700921 is an apocalyptic number.

It is an amenable number.

4700921 is a deficient number, since it is larger than the sum of its proper divisors (70231).

4700921 is an equidigital number, since it uses as much as digits as its factorization.

4700921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70230.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 4700921 is about 2168.1607412736. The cubic root of 4700921 is about 167.5178090517.

Adding to 4700921 its reverse (1290074), we get a palindrome (5990995).

The spelling of 4700921 in words is "four million, seven hundred thousand, nine hundred twenty-one".