2047421 has 8 divisors (see below), whose sum is σ = 2170080. Its totient is φ = 1926288.

The previous prime is 2047403. The next prime is 2047439. The reversal of 2047421 is 1247402.

It is an interprime number because it is at equal distance from previous prime (2047403) and next prime (2047439).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2047421 - 2¹⁰ = 2046397 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 2047393 and 2047402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3470 + ... + 4016.

It is an arithmetic number, because the mean of its divisors is an integer number (271260).

2^2047421 is an apocalyptic number.

It is an amenable number.

2047421 is a deficient number, since it is larger than the sum of its proper divisors (122659).

2047421 is a wasteful number, since it uses less digits than its factorization.

2047421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 2047421 is about 1430.8811970251. The cubic root of 2047421 is about 126.9801155137.

The spelling of 2047421 in words is "two million, forty-seven thousand, four hundred twenty-one".