421070985 has 24 divisors (see below), whose sum is σ = 753402624. Its totient is φ = 217326240.

The previous prime is 421070963. The next prime is 421070987. The reversal of 421070985 is 589070124.

It is not a de Polignac number, because 421070985 - 2⁵ = 421070953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421070987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149527 + ... + 152316.

It is an arithmetic number, because the mean of its divisors is an integer number (31391776).

Almost surely, 2^421070985 is an apocalyptic number.

421070985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

421070985 is a deficient number, since it is larger than the sum of its proper divisors (332331639).

421070985 is a wasteful number, since it uses less digits than its factorization.

421070985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301885 (or 301882 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 421070985 is about 20520.0142543810. The cubic root of 421070985 is about 749.5232436688.

The spelling of 421070985 in words is "four hundred twenty-one million, seventy thousand, nine hundred eighty-five".