16394677 has 6 divisors (see below), whose sum is σ = 17671542. Its totient is φ = 15120072.

The previous prime is 16394669. The next prime is 16394723. The reversal of 16394677 is 77649361.

It can be written as a sum of positive squares in only one way, i.e., 11350161 + 5044516 = 3369^2 + 2246^2 .

It is not a de Polignac number, because 16394677 - 2³ = 16394669 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 (16394617) 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, 14038 + ... + 15160.

It is an arithmetic number, because the mean of its divisors is an integer number (2945257).

Almost surely, 2^16394677 is an apocalyptic number.

It is an amenable number.

16394677 is a deficient number, since it is larger than the sum of its proper divisors (1276865).

16394677 is an frugal number, since it uses more digits than its factorization.

16394677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259 (or 1136 counting only the distinct ones).

The product of its digits is 190512, while the sum is 43.

The square root of 16394677 is about 4049.0340823461. The cubic root of 16394677 is about 254.0393278224.

It can be divided in two parts, 16394 and 677, that added together give a palindrome (17071).

The spelling of 16394677 in words is "sixteen million, three hundred ninety-four thousand, six hundred seventy-seven".