172696971 has 8 divisors (see below), whose sum is σ = 232542864. Its totient is φ = 113991200.

The previous prime is 172696969. The next prime is 172696973. The reversal of 172696971 is 179696271.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (172696969) and next prime (172696973).

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

It is a cyclic number.

It is not a de Polignac number, because 172696971 - 2¹ = 172696969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172696971.

It is not an unprimeable number, because it can be changed into a prime (172696973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284676 + ... + 285281.

It is an arithmetic number, because the mean of its divisors is an integer number (29067858).

Almost surely, 2^172696971 is an apocalyptic number.

172696971 is a deficient number, since it is larger than the sum of its proper divisors (59845893).

172696971 is a wasteful number, since it uses less digits than its factorization.

172696971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570061.

The product of its digits is 285768, while the sum is 48.

The square root of 172696971 is about 13141.4219550245. The cubic root of 172696971 is about 556.8799393552.

The spelling of 172696971 in words is "one hundred seventy-two million, six hundred ninety-six thousand, nine hundred seventy-one".