102080786 has 4 divisors (see below), whose sum is σ = 153121182. Its totient is φ = 51040392.

The previous prime is 102080761. The next prime is 102080821. The reversal of 102080786 is 687080201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 687080201 = 331 ⋅2075771.

It can be written as a sum of positive squares in only one way, i.e., 83375161 + 18705625 = 9131^2 + 4325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25520195 + ... + 25520198.

Almost surely, 2^102080786 is an apocalyptic number.

102080786 is a deficient number, since it is larger than the sum of its proper divisors (51040396).

102080786 is an equidigital number, since it uses as much as digits as its factorization.

102080786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51040395.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 102080786 is about 10103.5036497247. The cubic root of 102080786 is about 467.3561928162.

The spelling of 102080786 in words is "one hundred two million, eighty thousand, seven hundred eighty-six".