1672520867 has 2 divisors, whose sum is σ = 1672520868. Its totient is φ = 1672520866.

The previous prime is 1672520827. The next prime is 1672520869. The reversal of 1672520867 is 7680252761.

It is a strong prime.

It is an emirp because it is prime and its reverse (7680252761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672520867 - 2²⁴ = 1655743651 is a prime.

Together with 1672520869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1672520869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836260433 + 836260434.

It is an arithmetic number, because the mean of its divisors is an integer number (836260434).

Almost surely, 2^1672520867 is an apocalyptic number.

1672520867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672520867 is an equidigital number, since it uses as much as digits as its factorization.

1672520867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 1672520867 is about 40896.4652140011. The cubic root of 1672520867 is about 1187.0176637170.

The spelling of 1672520867 in words is "one billion, six hundred seventy-two million, five hundred twenty thousand, eight hundred sixty-seven".