107665720 has 32 divisors (see below), whose sum is σ = 247406400. Its totient is φ = 42149248.

The previous prime is 107665711. The next prime is 107665721. The reversal of 107665720 is 27566701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107665721) 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, 26755 + ... + 30514.

It is an arithmetic number, because the mean of its divisors is an integer number (7731450).

Almost surely, 2^107665720 is an apocalyptic number.

107665720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107665720 is an abundant number, since it is smaller than the sum of its proper divisors (139740680).

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

107665720 is a wasteful number, since it uses less digits than its factorization.

107665720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57327 (or 57323 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 107665720 is about 10376.2093271098. The cubic root of 107665720 is about 475.7284777760.

The spelling of 107665720 in words is "one hundred seven million, six hundred sixty-five thousand, seven hundred twenty".