10421855 has 8 divisors (see below), whose sum is σ = 12538464. Its totient is φ = 8316000.

The previous prime is 10421837. The next prime is 10421863. The reversal of 10421855 is 55812401.

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

It is not a de Polignac number, because 10421855 - 2⁶ = 10421791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371 + ... + 4580.

It is an arithmetic number, because the mean of its divisors is an integer number (1567308).

Almost surely, 2^10421855 is an apocalyptic number.

10421855 is a deficient number, since it is larger than the sum of its proper divisors (2116609).

10421855 is an equidigital number, since it uses as much as digits as its factorization.

10421855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 10421855 is about 3228.2897949224. The cubic root of 10421855 is about 218.4313695789.

The spelling of 10421855 in words is "ten million, four hundred twenty-one thousand, eight hundred fifty-five".