1672540817 has 8 divisors (see below), whose sum is σ = 1682903040. Its totient is φ = 1662191280.

The previous prime is 1672540789. The next prime is 1672540847. The reversal of 1672540817 is 7180452761.

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 1672540817 - 2¹⁶ = 1672475281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672540847) 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, 465008 + ... + 468590.

It is an arithmetic number, because the mean of its divisors is an integer number (210362880).

Almost surely, 2^1672540817 is an apocalyptic number.

It is an amenable number.

1672540817 is a deficient number, since it is larger than the sum of its proper divisors (10362223).

1672540817 is a wasteful number, since it uses less digits than its factorization.

1672540817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 1672540817 is about 40896.7091218841. The cubic root of 1672540817 is about 1187.0223833209.

The spelling of 1672540817 in words is "one billion, six hundred seventy-two million, five hundred forty thousand, eight hundred seventeen".