173870401 has 2 divisors, whose sum is σ = 173870402. Its totient is φ = 173870400.

The previous prime is 173870383. The next prime is 173870429. The reversal of 173870401 is 104078371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172948801 + 921600 = 13151^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 173870401 - 2¹³ = 173862209 is a prime.

It is not a weakly prime, because it can be changed into another prime (173870471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86935200 + 86935201.

It is an arithmetic number, because the mean of its divisors is an integer number (86935201).

Almost surely, 2^173870401 is an apocalyptic number.

It is an amenable number.

173870401 is a deficient number, since it is larger than the sum of its proper divisors (1).

173870401 is an equidigital number, since it uses as much as digits as its factorization.

173870401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 173870401 is about 13185.9926057920. The cubic root of 173870401 is about 558.1383771012.

The spelling of 173870401 in words is "one hundred seventy-three million, eight hundred seventy thousand, four hundred one".