207391968 has 192 divisors, whose sum is σ = 705438720. Its totient is φ = 58046976.

The previous prime is 207391937. The next prime is 207391969. The reversal of 207391968 is 869193702.

It is a super-2 number, since 2×207391968² = 86022856781826048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207391969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320221 + ... + 320867.

It is an arithmetic number, because the mean of its divisors is an integer number (3674160).

Almost surely, 2^207391968 is an apocalyptic number.

207391968 is a gapful number since it is divisible by the number (28) 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 207391968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352719360).

207391968 is an abundant number, since it is smaller than the sum of its proper divisors (498046752).

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

207391968 is a wasteful number, since it uses less digits than its factorization.

207391968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 207391968 is about 14401.1099572220. The cubic root of 207391968 is about 591.9213128920.

The spelling of 207391968 in words is "two hundred seven million, three hundred ninety-one thousand, nine hundred sixty-eight".