172273963 has 2 divisors, whose sum is σ = 172273964. Its totient is φ = 172273962.

The previous prime is 172273921. The next prime is 172273991. The reversal of 172273963 is 369372271.

It is a strong prime.

It is an emirp because it is prime and its reverse (369372271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172273963 - 2¹⁷ = 172142891 is a prime.

It is not a weakly prime, because it can be changed into another prime (172273993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86136981 + 86136982.

It is an arithmetic number, because the mean of its divisors is an integer number (86136982).

Almost surely, 2^172273963 is an apocalyptic number.

172273963 is a deficient number, since it is larger than the sum of its proper divisors (1).

172273963 is an equidigital number, since it uses as much as digits as its factorization.

172273963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 40.

The square root of 172273963 is about 13125.3176342518. The cubic root of 172273963 is about 556.4248893665.

The spelling of 172273963 in words is "one hundred seventy-two million, two hundred seventy-three thousand, nine hundred sixty-three".