16471481 has 8 divisors (see below), whose sum is σ = 18004224. Its totient is φ = 14976720.

The previous prime is 16471457. The next prime is 16471489. The reversal of 16471481 is 18417461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16471481 is a prime.

It is a super-2 number, since 2×16471481² = 542619372666722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16471489) 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, 8585 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (2250528).

Almost surely, 2^16471481 is an apocalyptic number.

It is an amenable number.

16471481 is a deficient number, since it is larger than the sum of its proper divisors (1532743).

16471481 is a wasteful number, since it uses less digits than its factorization.

16471481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18991.

The product of its digits is 5376, while the sum is 32.

The square root of 16471481 is about 4058.5072378893. The cubic root of 16471481 is about 254.4354085654.

The spelling of 16471481 in words is "sixteen million, four hundred seventy-one thousand, four hundred eighty-one".