1773897216 has 400 divisors, whose sum is σ = 6097620144. Its totient is φ = 455196672.

The previous prime is 1773897199. The next prime is 1773897217. The reversal of 1773897216 is 6127983771.

It is a super-2 number, since 2×1773897216² = 6293422665865101312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1773897217) 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 39 ways as a sum of consecutive naturals, for example, 47943150 + ... + 47943186.

Almost surely, 2^1773897216 is an apocalyptic number.

1773897216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1773897216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3048810072).

1773897216 is an abundant number, since it is smaller than the sum of its proper divisors (4323722928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1773897216 is an frugal number, since it uses more digits than its factorization.

1773897216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 62 counting only the distinct ones).

The product of its digits is 889056, while the sum is 51.

The square root of 1773897216 is about 42117.6591942145. The cubic root of 1773897216 is about 1210.5316553522.

The spelling of 1773897216 in words is "one billion, seven hundred seventy-three million, eight hundred ninety-seven thousand, two hundred sixteen".