79487 has 4 divisors (see below), whose sum is σ = 80376. Its totient is φ = 78600.

The previous prime is 79481. The next prime is 79493. The reversal of 79487 is 78497.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (79481) and next prime (79493).

It is a cyclic number.

It is not a de Polignac number, because 79487 - 2⁶ = 79423 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79481) 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, 293 + ... + 494.

It is an arithmetic number, because the mean of its divisors is an integer number (20094).

2⁷⁹⁴⁸⁷ is an apocalyptic number.

79487 is a deficient number, since it is larger than the sum of its proper divisors (889).

79487 is a wasteful number, since it uses less digits than its factorization.

79487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

The product of its digits is 14112, while the sum is 35.

The square root of 79487 is about 281.9343895306. The cubic root of 79487 is about 42.9963941451.

Subtracting from 79487 its reverse (78497), we obtain a triangular number (990 = T₄₄).

The spelling of 79487 in words is "seventy-nine thousand, four hundred eighty-seven".