16861394 has 16 divisors (see below), whose sum is σ = 27972000. Its totient is φ = 7558560.

The previous prime is 16861387. The next prime is 16861447. The reversal of 16861394 is 49316861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644 + ... + 6855.

It is an arithmetic number, because the mean of its divisors is an integer number (1748250).

Almost surely, 2^16861394 is an apocalyptic number.

16861394 is a deficient number, since it is larger than the sum of its proper divisors (11110606).

16861394 is a wasteful number, since it uses less digits than its factorization.

16861394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10585.

The product of its digits is 31104, while the sum is 38.

The square root of 16861394 is about 4106.2627777579. The cubic root of 16861394 is about 256.4274373689.

The spelling of 16861394 in words is "sixteen million, eight hundred sixty-one thousand, three hundred ninety-four".