361986361 has 16 divisors (see below), whose sum is σ = 399708288. Its totient is φ = 325094400.

The previous prime is 361986307. The next prime is 361986367. The reversal of 361986361 is 163689163.

It is a cyclic number.

It is not a de Polignac number, because 361986361 - 2¹⁷ = 361855289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361986367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354031 + ... + 355051.

It is an arithmetic number, because the mean of its divisors is an integer number (24981768).

Almost surely, 2^361986361 is an apocalyptic number.

It is an amenable number.

361986361 is a deficient number, since it is larger than the sum of its proper divisors (37721927).

361986361 is a wasteful number, since it uses less digits than its factorization.

361986361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392.

The product of its digits is 139968, while the sum is 43.

The square root of 361986361 is about 19025.9391621018. The cubic root of 361986361 is about 712.6846459374.

The spelling of 361986361 in words is "three hundred sixty-one million, nine hundred eighty-six thousand, three hundred sixty-one".