180879247 has 2 divisors, whose sum is σ = 180879248. Its totient is φ = 180879246.

The previous prime is 180879241. The next prime is 180879289. The reversal of 180879247 is 742978081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180879247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180879197 and 180879206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180879241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90439623 + 90439624.

It is an arithmetic number, because the mean of its divisors is an integer number (90439624).

Almost surely, 2^180879247 is an apocalyptic number.

180879247 is a deficient number, since it is larger than the sum of its proper divisors (1).

180879247 is an equidigital number, since it uses as much as digits as its factorization.

180879247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 180879247 is about 13449.1355484284. The cubic root of 180879247 is about 565.5394612648.

The spelling of 180879247 in words is "one hundred eighty million, eight hundred seventy-nine thousand, two hundred forty-seven".