72487 has 4 divisors (see below), whose sum is σ = 73080. Its totient is φ = 71896.

The previous prime is 72481. The next prime is 72493. The reversal of 72487 is 78427.

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 (72481) and next prime (72493).

It is a cyclic number.

It is not a de Polignac number, because 72487 - 2¹¹ = 70439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72481) 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, 37 + ... + 382.

It is an arithmetic number, because the mean of its divisors is an integer number (18270).

2⁷²⁴⁸⁷ is an apocalyptic number.

72487 is a deficient number, since it is larger than the sum of its proper divisors (593).

72487 is a wasteful number, since it uses less digits than its factorization.

72487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592.

The product of its digits is 3136, while the sum is 28.

The square root of 72487 is about 269.2340988805. The cubic root of 72487 is about 41.6952621485.

The spelling of 72487 in words is "seventy-two thousand, four hundred eighty-seven".