10421878 has 8 divisors (see below), whose sum is σ = 15897960. Its totient is φ = 5122560.

The previous prime is 10421863. The next prime is 10421881. The reversal of 10421878 is 87812401.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44043 + ... + 44278.

It is an arithmetic number, because the mean of its divisors is an integer number (1987245).

Almost surely, 2^10421878 is an apocalyptic number.

10421878 is a deficient number, since it is larger than the sum of its proper divisors (5476082).

10421878 is an equidigital number, since it uses as much as digits as its factorization.

10421878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88382.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 10421878 is about 3228.2933571781. The cubic root of 10421878 is about 218.4315302642.

The spelling of 10421878 in words is "ten million, four hundred twenty-one thousand, eight hundred seventy-eight".