171393964 has 18 divisors (see below), whose sum is σ = 348909540. Its totient is φ = 73454472.

The previous prime is 171393923. The next prime is 171393967. The reversal of 171393964 is 469393171.

171393964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 171393964.

It is not an unprimeable number, because it can be changed into a prime (171393967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 437034 + ... + 437425.

Almost surely, 2^171393964 is an apocalyptic number.

171393964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

171393964 is an abundant number, since it is smaller than the sum of its proper divisors (177515576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171393964 is a wasteful number, since it uses less digits than its factorization.

171393964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874477 (or 874468 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 171393964 is about 13091.7517544445. The cubic root of 171393964 is about 555.4758400527.

The spelling of 171393964 in words is "one hundred seventy-one million, three hundred ninety-three thousand, nine hundred sixty-four".