102345679 has 4 divisors (see below), whose sum is σ = 102672976.
Its totient is φ = 102018384.
The previous prime is 102345673. The next prime is 102345689. The reversal of 102345679 is 976543201.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 976543201 = 43 ⋅22710307.
It is a cyclic number.
It is not a de Polignac number, because 102345679 - 23 = 102345671 is a prime.
It is a Duffinian number.
It is the 68-th primeval number, because it sets a new record (64905) in the number of distinct primes that is it possible to write using its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102345671) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163179 + ... + 163804.
It is an arithmetic number, because the mean of its divisors is an integer number (25668244).
Almost surely, 2102345679 is an apocalyptic number.
102345679 is a deficient number, since it is larger than the sum of its proper divisors (327297).
102345679 is an equidigital number, since it uses as much as digits as its factorization.
102345679 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 327296.
The product of its (nonzero) digits is 45360, while the sum is 37.
The square root of 102345679 is about 10116.6041239143.
The cubic root of 102345679 is about 467.7600966234.
The spelling of 102345679 in words is "one hundred two million, three hundred forty-five thousand, six hundred seventy-nine".