4927421 has 4 divisors (see below), whose sum is σ = 5047644. Its totient is φ = 4807200.

The previous prime is 4927409. The next prime is 4927423. The reversal of 4927421 is 1247294.

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 2524921 + 2402500 = 1589^2 + 1550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4927421 is a prime.

It is a super-2 number, since 2×4927421² = 48558955422482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4927423) 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, 60050 + ... + 60131.

It is an arithmetic number, because the mean of its divisors is an integer number (1261911).

Almost surely, 2^4927421 is an apocalyptic number.

4927421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4927421 is a deficient number, since it is larger than the sum of its proper divisors (120223).

4927421 is a wasteful number, since it uses less digits than its factorization.

4927421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120222.

The product of its digits is 4032, while the sum is 29.

The square root of 4927421 is about 2219.7794935534. The cubic root of 4927421 is about 170.1661697013.

The spelling of 4927421 in words is "four million, nine hundred twenty-seven thousand, four hundred twenty-one".