1672206171 has 8 divisors (see below), whose sum is σ = 2229798480. Its totient is φ = 1114708992.

The previous prime is 1672206121. The next prime is 1672206181. The reversal of 1672206171 is 1716022761.

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

It is not a de Polignac number, because 1672206171 - 2⁷ = 1672206043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1672206121) 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, 49471 + ... + 76103.

It is an arithmetic number, because the mean of its divisors is an integer number (278724810).

Almost surely, 2^1672206171 is an apocalyptic number.

1672206171 is a deficient number, since it is larger than the sum of its proper divisors (557592309).

1672206171 is a wasteful number, since it uses less digits than its factorization.

1672206171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47565.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 1672206171 is about 40892.6175611198. The cubic root of 1672206171 is about 1186.9432106067.

The spelling of 1672206171 in words is "one billion, six hundred seventy-two million, two hundred six thousand, one hundred seventy-one".