1672117507 has 2 divisors, whose sum is σ = 1672117508. Its totient is φ = 1672117506.

The previous prime is 1672117483. The next prime is 1672117537. The reversal of 1672117507 is 7057112761.

It is a weak prime.

It is an emirp because it is prime and its reverse (7057112761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672117507 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672117537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836058753 + 836058754.

It is an arithmetic number, because the mean of its divisors is an integer number (836058754).

Almost surely, 2^1672117507 is an apocalyptic number.

1672117507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672117507 is an equidigital number, since it uses as much as digits as its factorization.

1672117507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20580, while the sum is 37.

The square root of 1672117507 is about 40891.5334390874. The cubic root of 1672117507 is about 1186.9222321343.

The spelling of 1672117507 in words is "one billion, six hundred seventy-two million, one hundred seventeen thousand, five hundred seven".