1672375813 has 2 divisors, whose sum is σ = 1672375814. Its totient is φ = 1672375812.

The previous prime is 1672375807. The next prime is 1672375849. The reversal of 1672375813 is 3185732761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1638468484 + 33907329 = 40478^2 + 5823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672375813 - 2²¹ = 1670278661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1672375813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672375613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836187906 + 836187907.

It is an arithmetic number, because the mean of its divisors is an integer number (836187907).

Almost surely, 2^1672375813 is an apocalyptic number.

It is an amenable number.

1672375813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672375813 is an equidigital number, since it uses as much as digits as its factorization.

1672375813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 1672375813 is about 40894.6917459956. The cubic root of 1672375813 is about 1186.9833469278.

The spelling of 1672375813 in words is "one billion, six hundred seventy-two million, three hundred seventy-five thousand, eight hundred thirteen".