361216647 has 12 divisors (see below), whose sum is σ = 569190024. Its totient is φ = 218919120.

The previous prime is 361216643. The next prime is 361216673. The reversal of 361216647 is 746612163.

It is a happy number.

361216647 is a `hidden beast` number, since 3 + 6 + 1 + 2 + 1 + 6 + 647 = 666.

It is not a de Polignac number, because 361216647 - 2² = 361216643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361216643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1824228 + ... + 1824425.

It is an arithmetic number, because the mean of its divisors is an integer number (47432502).

Almost surely, 2^361216647 is an apocalyptic number.

361216647 is a deficient number, since it is larger than the sum of its proper divisors (207973377).

361216647 is a wasteful number, since it uses less digits than its factorization.

361216647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648670 (or 3648667 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 361216647 is about 19005.7003817276. The cubic root of 361216647 is about 712.1791456540.

The spelling of 361216647 in words is "three hundred sixty-one million, two hundred sixteen thousand, six hundred forty-seven".