16770449 has 4 divisors (see below), whose sum is σ = 17756964. Its totient is φ = 15783936.

The previous prime is 16770433. The next prime is 16770451. The reversal of 16770449 is 94407761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7728400 + 9042049 = 2780^2 + 3007^2 .

It is a cyclic number.

It is not a de Polignac number, because 16770449 - 2⁴ = 16770433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16770409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493232 + ... + 493265.

It is an arithmetic number, because the mean of its divisors is an integer number (4439241).

Almost surely, 2^16770449 is an apocalyptic number.

It is an amenable number.

16770449 is a deficient number, since it is larger than the sum of its proper divisors (986515).

16770449 is an equidigital number, since it uses as much as digits as its factorization.

16770449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986514.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 16770449 is about 4095.1738668828. The cubic root of 16770449 is about 255.9655766296.

The spelling of 16770449 in words is "sixteen million, seven hundred seventy thousand, four hundred forty-nine".