16772638 has 16 divisors (see below), whose sum is σ = 25724160. Its totient is φ = 8199576.

The previous prime is 16772633. The next prime is 16772653. The reversal of 16772638 is 83627761.

It is a self number, because there is not a number n which added to its sum of digits gives 16772638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16772633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35995 + ... + 36457.

It is an arithmetic number, because the mean of its divisors is an integer number (1607760).

Almost surely, 2^16772638 is an apocalyptic number.

16772638 is a deficient number, since it is larger than the sum of its proper divisors (8951522).

16772638 is a wasteful number, since it uses less digits than its factorization.

16772638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its digits is 84672, while the sum is 40.

The square root of 16772638 is about 4095.4411239816. The cubic root of 16772638 is about 255.9767129697.

The spelling of 16772638 in words is "sixteen million, seven hundred seventy-two thousand, six hundred thirty-eight".