16064749 has 4 divisors (see below), whose sum is σ = 16079836. Its totient is φ = 16049664.

The previous prime is 16064731. The next prime is 16064761. The reversal of 16064749 is 94746061.

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 14976900 + 1087849 = 3870^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 16064749 - 2⁷ = 16064621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16064149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5814 + ... + 8119.

It is an arithmetic number, because the mean of its divisors is an integer number (4019959).

Almost surely, 2^16064749 is an apocalyptic number.

It is an amenable number.

16064749 is a deficient number, since it is larger than the sum of its proper divisors (15087).

16064749 is a wasteful number, since it uses less digits than its factorization.

16064749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15086.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 16064749 is about 4008.0854531809. The cubic root of 16064749 is about 252.3236634387.

The spelling of 16064749 in words is "sixteen million, sixty-four thousand, seven hundred forty-nine".