170969421 has 8 divisors (see below), whose sum is σ = 260524864. Its totient is φ = 97696800.

The previous prime is 170969411. The next prime is 170969473. The reversal of 170969421 is 124969071.

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

It is not a de Polignac number, because 170969421 - 2¹¹ = 170967373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 170969421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170969401) 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, 4070680 + ... + 4070721.

It is an arithmetic number, because the mean of its divisors is an integer number (32565608).

Almost surely, 2^170969421 is an apocalyptic number.

It is an amenable number.

170969421 is a deficient number, since it is larger than the sum of its proper divisors (89555443).

170969421 is an equidigital number, since it uses as much as digits as its factorization.

170969421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8141411.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 170969421 is about 13075.5275610585. The cubic root of 170969421 is about 555.0168227999.

The spelling of 170969421 in words is "one hundred seventy million, nine hundred sixty-nine thousand, four hundred twenty-one".