246871421 has 4 divisors (see below), whose sum is σ = 246955644. Its totient is φ = 246787200.

The previous prime is 246871411. The next prime is 246871447. The reversal of 246871421 is 124178642.

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 209844196 + 37027225 = 14486^2 + 6085^2 .

It is a cyclic number.

It is not a de Polignac number, because 246871421 - 2⁶ = 246871357 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 (246871411) 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, 37550 + ... + 43631.

It is an arithmetic number, because the mean of its divisors is an integer number (61738911).

Almost surely, 2^246871421 is an apocalyptic number.

It is an amenable number.

246871421 is a deficient number, since it is larger than the sum of its proper divisors (84223).

246871421 is an equidigital number, since it uses as much as digits as its factorization.

246871421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84222.

The product of its digits is 21504, while the sum is 35.

The square root of 246871421 is about 15712.1424700771. The cubic root of 246871421 is about 627.3216445217.

The spelling of 246871421 in words is "two hundred forty-six million, eight hundred seventy-one thousand, four hundred twenty-one".