16447412 has 6 divisors (see below), whose sum is σ = 28782978. Its totient is φ = 8223704.

The previous prime is 16447393. The next prime is 16447427. The reversal of 16447412 is 21474461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13868176 + 2579236 = 3724^2 + 1606^2 .

It is a super-2 number, since 2×16447412² = 541034722995488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055923 + ... + 2055930.

It is an arithmetic number, because the mean of its divisors is an integer number (4797163).

Almost surely, 2^16447412 is an apocalyptic number.

It is an amenable number.

16447412 is a deficient number, since it is larger than the sum of its proper divisors (12335566).

16447412 is a wasteful number, since it uses less digits than its factorization.

16447412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111857 (or 4111855 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 16447412 is about 4055.5409010390. The cubic root of 16447412 is about 254.3114166552.

The spelling of 16447412 in words is "sixteen million, four hundred forty-seven thousand, four hundred twelve".