102866379 has 32 divisors (see below), whose sum is σ = 172730880. Its totient is φ = 52896000.

The previous prime is 102866369. The next prime is 102866383. The reversal of 102866379 is 973668201.

It is a happy number.

It is not a de Polignac number, because 102866379 - 2⁵ = 102866347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102866379.

It is not an unprimeable number, because it can be changed into a prime (102866329) 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, 21127 + ... + 25535.

It is an arithmetic number, because the mean of its divisors is an integer number (5397840).

Almost surely, 2^102866379 is an apocalyptic number.

102866379 is a deficient number, since it is larger than the sum of its proper divisors (69864501).

102866379 is a wasteful number, since it uses less digits than its factorization.

102866379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 102866379 is about 10142.3063945042. The cubic root of 102866379 is about 468.5520232051.

The spelling of 102866379 in words is "one hundred two million, eight hundred sixty-six thousand, three hundred seventy-nine".