16057789 has 6 divisors (see below), whose sum is σ = 17650430. Its totient is φ = 14597880.

The previous prime is 16057787. The next prime is 16057799. The reversal of 16057789 is 98775061.

It can be written as a sum of positive squares in only one way, i.e., 15077689 + 980100 = 3883^2 + 990^2 .

It is not a de Polignac number, because 16057789 - 2¹ = 16057787 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 (16057787) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66234 + ... + 66475.

Almost surely, 2^16057789 is an apocalyptic number.

It is an amenable number.

16057789 is a deficient number, since it is larger than the sum of its proper divisors (1592641).

16057789 is a wasteful number, since it uses less digits than its factorization.

16057789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132731 (or 132720 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 16057789 is about 4007.2171141579. The cubic root of 16057789 is about 252.2872187075.

The spelling of 16057789 in words is "sixteen million, fifty-seven thousand, seven hundred eighty-nine".