17421070 has 16 divisors (see below), whose sum is σ = 32370048. Its totient is φ = 6743520.

The previous prime is 17421059. The next prime is 17421071. The reversal of 17421070 is 7012471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17421071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27789 + ... + 28408.

It is an arithmetic number, because the mean of its divisors is an integer number (2023128).

Almost surely, 2^17421070 is an apocalyptic number.

17421070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17421070 is a deficient number, since it is larger than the sum of its proper divisors (14948978).

17421070 is a wasteful number, since it uses less digits than its factorization.

17421070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56235.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 17421070 is about 4173.8555317596. The cubic root of 17421070 is about 259.2337895891.

The spelling of 17421070 in words is "seventeen million, four hundred twenty-one thousand, seventy".