879481421 has 8 divisors (see below), whose sum is σ = 1082438784. Its totient is φ = 695853360.

The previous prime is 879481411. The next prime is 879481423. The reversal of 879481421 is 124184978.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879481421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879481423) 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, 4832225 + ... + 4832406.

It is an arithmetic number, because the mean of its divisors is an integer number (135304848).

Almost surely, 2^879481421 is an apocalyptic number.

It is an amenable number.

879481421 is a deficient number, since it is larger than the sum of its proper divisors (202957363).

879481421 is a wasteful number, since it uses less digits than its factorization.

879481421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664651.

The product of its digits is 129024, while the sum is 44.

The square root of 879481421 is about 29656.0520130377. The cubic root of 879481421 is about 958.0956973249.

The spelling of 879481421 in words is "eight hundred seventy-nine million, four hundred eighty-one thousand, four hundred twenty-one".