1672747717 has 8 divisors (see below), whose sum is σ = 1702632960. Its totient is φ = 1643038320.

The previous prime is 1672747711. The next prime is 1672747729. The reversal of 1672747717 is 7177472761.

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 1672747717 - 2³ = 1672747709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672747711) 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, 24693 + ... + 62890.

It is an arithmetic number, because the mean of its divisors is an integer number (212829120).

Almost surely, 2^1672747717 is an apocalyptic number.

It is an amenable number.

1672747717 is a deficient number, since it is larger than the sum of its proper divisors (29885243).

1672747717 is an equidigital number, since it uses as much as digits as its factorization.

1672747717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87923.

The product of its digits is 806736, while the sum is 49.

The square root of 1672747717 is about 40899.2385870446. The cubic root of 1672747717 is about 1187.0713277776.

The spelling of 1672747717 in words is "one billion, six hundred seventy-two million, seven hundred forty-seven thousand, seven hundred seventeen".