16861036 has 6 divisors (see below), whose sum is σ = 29506820. Its totient is φ = 8430516.

The previous prime is 16861027. The next prime is 16861051. The reversal of 16861036 is 63016861.

It is a junction number, because it is equal to n+sod(n) for n = 16860989 and 16861007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107626 + ... + 2107633.

Almost surely, 2^16861036 is an apocalyptic number.

It is an amenable number.

16861036 is a deficient number, since it is larger than the sum of its proper divisors (12645784).

16861036 is a wasteful number, since it uses less digits than its factorization.

16861036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215263 (or 4215261 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 16861036 is about 4106.2191855769. The cubic root of 16861036 is about 256.4256225393.

Adding to 16861036 its reverse (63016861), we get a palindrome (79877897).

The spelling of 16861036 in words is "sixteen million, eight hundred sixty-one thousand, thirty-six".