102399707 has 4 divisors (see below), whose sum is σ = 102444960. Its totient is φ = 102354456.

The previous prime is 102399701. The next prime is 102399779. The reversal of 102399707 is 707993201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707993201 = 73 ⋅9698537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102399707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102399701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19043 + ... + 23820.

It is an arithmetic number, because the mean of its divisors is an integer number (25611240).

Almost surely, 2^102399707 is an apocalyptic number.

102399707 is a deficient number, since it is larger than the sum of its proper divisors (45253).

102399707 is an equidigital number, since it uses as much as digits as its factorization.

102399707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45252.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 102399707 is about 10119.2740352260. The cubic root of 102399707 is about 467.8423918963.

The spelling of 102399707 in words is "one hundred two million, three hundred ninety-nine thousand, seven hundred seven".