107780715 has 48 divisors (see below), whose sum is σ = 214239168. Its totient is φ = 49102848.

The previous prime is 107780713. The next prime is 107780723. The reversal of 107780715 is 517087701.

It is not a de Polignac number, because 107780715 - 2¹ = 107780713 is a prime.

It is a super-2 number, since 2×107780715² = 23233365051822450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 107780715.

It is not an unprimeable number, because it can be changed into a prime (107780713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181459 + ... + 182051.

It is an arithmetic number, because the mean of its divisors is an integer number (4463316).

Almost surely, 2^107780715 is an apocalyptic number.

107780715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

107780715 is a deficient number, since it is larger than the sum of its proper divisors (106458453).

107780715 is a wasteful number, since it uses less digits than its factorization.

107780715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 36.

The square root of 107780715 is about 10381.7491300840. The cubic root of 107780715 is about 475.8977886486.

The spelling of 107780715 in words is "one hundred seven million, seven hundred eighty thousand, seven hundred fifteen".