102707857 has 8 divisors (see below), whose sum is σ = 122484096. Its totient is φ = 84207552.

The previous prime is 102707797. The next prime is 102707887. The reversal of 102707857 is 758707201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102707857 - 2¹⁹ = 102183569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102707887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318808 + ... + 319129.

It is an arithmetic number, because the mean of its divisors is an integer number (15310512).

Almost surely, 2^102707857 is an apocalyptic number.

It is an amenable number.

102707857 is a deficient number, since it is larger than the sum of its proper divisors (19776239).

102707857 is an equidigital number, since it uses as much as digits as its factorization.

102707857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637967.

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 102707857 is about 10134.4884922723. The cubic root of 102707857 is about 468.3112124516.

The spelling of 102707857 in words is "one hundred two million, seven hundred seven thousand, eight hundred fifty-seven".