16861433 has 8 divisors (see below), whose sum is σ = 18156960. Its totient is φ = 15599680.

The previous prime is 16861387. The next prime is 16861447. The reversal of 16861433 is 33416861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16861433 - 2¹⁰ = 16860409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16861433.

It is not an unprimeable number, because it can be changed into a prime (16861463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7403 + ... + 9408.

It is an arithmetic number, because the mean of its divisors is an integer number (2269620).

Almost surely, 2^16861433 is an apocalyptic number.

It is an amenable number.

16861433 is a deficient number, since it is larger than the sum of its proper divisors (1295527).

16861433 is a wasteful number, since it uses less digits than its factorization.

16861433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16887.

The product of its digits is 10368, while the sum is 32.

The square root of 16861433 is about 4106.2675265988. The cubic root of 16861433 is about 256.4276350723.

The spelling of 16861433 in words is "sixteen million, eight hundred sixty-one thousand, four hundred thirty-three".