16481477 has 2 divisors, whose sum is σ = 16481478. Its totient is φ = 16481476.

The previous prime is 16481453. The next prime is 16481489. The reversal of 16481477 is 77418461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14546596 + 1934881 = 3814^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 16481477 - 2¹⁴ = 16465093 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16481477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16481447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8240738 + 8240739.

It is an arithmetic number, because the mean of its divisors is an integer number (8240739).

Almost surely, 2^16481477 is an apocalyptic number.

It is an amenable number.

16481477 is a deficient number, since it is larger than the sum of its proper divisors (1).

16481477 is an equidigital number, since it uses as much as digits as its factorization.

16481477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 16481477 is about 4059.7385383790. The cubic root of 16481477 is about 254.4868676506.

It can be divided in two parts, 1648 and 1477, that added together give a 5-th power (3125 = 5⁵).

The spelling of 16481477 in words is "sixteen million, four hundred eighty-one thousand, four hundred seventy-seven".