16477493 has 2 divisors, whose sum is σ = 16477494. Its totient is φ = 16477492.

The previous prime is 16477459. The next prime is 16477537. The reversal of 16477493 is 39477461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13010449 + 3467044 = 3607^2 + 1862^2 .

It is an emirp because it is prime and its reverse (39477461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16477493 - 2⁶ = 16477429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16477493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16477393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8238746 + 8238747.

It is an arithmetic number, because the mean of its divisors is an integer number (8238747).

Almost surely, 2^16477493 is an apocalyptic number.

It is an amenable number.

16477493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16477493 is an equidigital number, since it uses as much as digits as its factorization.

16477493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 16477493 is about 4059.2478367303. The cubic root of 16477493 is about 254.4663606417.

The spelling of 16477493 in words is "sixteen million, four hundred seventy-seven thousand, four hundred ninety-three".