6860487421 has 4 divisors (see below), whose sum is σ = 6901568352. Its totient is φ = 6819406492.

The previous prime is 6860487419. The next prime is 6860487433. The reversal of 6860487421 is 1247840686.

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: 1247840686 = 2 ⋅623920343.

It is a cyclic number.

It is not a de Polignac number, because 6860487421 - 2¹ = 6860487419 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 (6860487461) 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, 20540215 + ... + 20540548.

It is an arithmetic number, because the mean of its divisors is an integer number (1725392088).

Almost surely, 2^6860487421 is an apocalyptic number.

It is an amenable number.

6860487421 is a deficient number, since it is larger than the sum of its proper divisors (41080931).

6860487421 is a wasteful number, since it uses less digits than its factorization.

6860487421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41080930.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 6860487421 is about 82828.0593820717. The cubic root of 6860487421 is about 1900.1373327326.

It can be divided in two parts, 68604 and 87421, that added together give a square (156025 = 395²).

The spelling of 6860487421 in words is "six billion, eight hundred sixty million, four hundred eighty-seven thousand, four hundred twenty-one".