361879369 has 2 divisors, whose sum is σ = 361879370. Its totient is φ = 361879368.

The previous prime is 361879361. The next prime is 361879373. The reversal of 361879369 is 963978163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349241344 + 12638025 = 18688^2 + 3555^2 .

It is an emirp because it is prime and its reverse (963978163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361879369 - 2³ = 361879361 is a prime.

It is a super-2 number, since 2×361879369² = 261913355415676322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (361879361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180939684 + 180939685.

It is an arithmetic number, because the mean of its divisors is an integer number (180939685).

Almost surely, 2^361879369 is an apocalyptic number.

It is an amenable number.

361879369 is a deficient number, since it is larger than the sum of its proper divisors (1).

361879369 is an equidigital number, since it uses as much as digits as its factorization.

361879369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 361879369 is about 19023.1272139993. The cubic root of 361879369 is about 712.6144231541.

The spelling of 361879369 in words is "three hundred sixty-one million, eight hundred seventy-nine thousand, three hundred sixty-nine".