102479 has 4 divisors (see below), whose sum is σ = 110376. Its totient is φ = 94584.

The previous prime is 102461. The next prime is 102481. The reversal of 102479 is 974201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974201 = 41 ⋅23761.

It is a cyclic number.

It is not a de Polignac number, because 102479 - 2¹⁶ = 36943 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102409) 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, 3929 + ... + 3954.

It is an arithmetic number, because the mean of its divisors is an integer number (27594).

2¹⁰²⁴⁷⁹ is an apocalyptic number.

102479 is a deficient number, since it is larger than the sum of its proper divisors (7897).

102479 is an equidigital number, since it uses as much as digits as its factorization.

102479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 102479 is about 320.1234137017. The cubic root of 102479 is about 46.7963118334.

The spelling of 102479 in words is "one hundred two thousand, four hundred seventy-nine".