107878761 has 6 divisors (see below), whose sum is σ = 155824890. Its totient is φ = 71919168.

The previous prime is 107878741. The next prime is 107878783. The reversal of 107878761 is 167878701.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107246736 + 632025 = 10356^2 + 795^2 .

It is not a de Polignac number, because 107878761 - 2⁶ = 107878697 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (107878711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5993256 + ... + 5993273.

It is an arithmetic number, because the mean of its divisors is an integer number (25970815).

Almost surely, 2^107878761 is an apocalyptic number.

It is an amenable number.

107878761 is a deficient number, since it is larger than the sum of its proper divisors (47946129).

107878761 is a wasteful number, since it uses less digits than its factorization.

107878761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986535 (or 11986532 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 45.

The square root of 107878761 is about 10386.4700933474. The cubic root of 107878761 is about 476.0420498713.

The spelling of 107878761 in words is "one hundred seven million, eight hundred seventy-eight thousand, seven hundred sixty-one".