16861652 has 6 divisors (see below), whose sum is σ = 29507898. Its totient is φ = 8430824.

The previous prime is 16861651. The next prime is 16861661. The reversal of 16861652 is 25616861.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12716356 + 4145296 = 3566^2 + 2036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16861651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107703 + ... + 2107710.

It is an arithmetic number, because the mean of its divisors is an integer number (4917983).

Almost surely, 2^16861652 is an apocalyptic number.

It is an amenable number.

16861652 is a deficient number, since it is larger than the sum of its proper divisors (12646246).

16861652 is a wasteful number, since it uses less digits than its factorization.

16861652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215417 (or 4215415 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 16861652 is about 4106.2941930651. The cubic root of 16861652 is about 256.4287452470.

The spelling of 16861652 in words is "sixteen million, eight hundred sixty-one thousand, six hundred fifty-two".