16772445 has 24 divisors (see below), whose sum is σ = 29511456. Its totient is φ = 8810208.

The previous prime is 16772443. The next prime is 16772447. The reversal of 16772445 is 54427761.

It is an interprime number because it is at equal distance from previous prime (16772443) and next prime (16772447).

It is not a de Polignac number, because 16772445 - 2¹ = 16772443 is a prime.

It is a super-2 number, since 2×16772445² = 562629822556050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16772443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234 + ... + 5796.

It is an arithmetic number, because the mean of its divisors is an integer number (1229644).

Almost surely, 2^16772445 is an apocalyptic number.

16772445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16772445 is a deficient number, since it is larger than the sum of its proper divisors (12739011).

16772445 is a wasteful number, since it uses less digits than its factorization.

16772445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641 (or 5638 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 16772445 is about 4095.4175611285. The cubic root of 16772445 is about 255.9757311385.

The spelling of 16772445 in words is "sixteen million, seven hundred seventy-two thousand, four hundred forty-five".