361898647 has 4 divisors (see below), whose sum is σ = 394798536. Its totient is φ = 328998760.

The previous prime is 361898633. The next prime is 361898651. The reversal of 361898647 is 746898163.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746898163 = 11 ⋅67899833.

It is a cyclic number.

It is not a de Polignac number, because 361898647 - 2¹¹ = 361896599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 361898594 and 361898603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361892647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16449928 + ... + 16449949.

It is an arithmetic number, because the mean of its divisors is an integer number (98699634).

Almost surely, 2^361898647 is an apocalyptic number.

361898647 is a deficient number, since it is larger than the sum of its proper divisors (32899889).

361898647 is a wasteful number, since it uses less digits than its factorization.

361898647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32899888.

The product of its digits is 1741824, while the sum is 52.

The square root of 361898647 is about 19023.6339062756. The cubic root of 361898647 is about 712.6270770365.

The spelling of 361898647 in words is "three hundred sixty-one million, eight hundred ninety-eight thousand, six hundred forty-seven".