4690421 has 4 divisors (see below), whose sum is σ = 4695372. Its totient is φ = 4685472.

The previous prime is 4690417. The next prime is 4690451. The reversal of 4690421 is 1240964.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 3189796 = 1225^2 + 1786^2 .

It is a cyclic number.

It is not a de Polignac number, because 4690421 - 2² = 4690417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4690451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560 + ... + 3113.

It is an arithmetic number, because the mean of its divisors is an integer number (1173843).

Almost surely, 2^4690421 is an apocalyptic number.

It is an amenable number.

4690421 is a deficient number, since it is larger than the sum of its proper divisors (4951).

4690421 is a wasteful number, since it uses less digits than its factorization.

4690421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 4690421 is about 2165.7379804584. The cubic root of 4690421 is about 167.3929932115.

The spelling of 4690421 in words is "four million, six hundred ninety thousand, four hundred twenty-one".