613487 has 4 divisors (see below), whose sum is σ = 701136. Its totient is φ = 525840.

The previous prime is 613471. The next prime is 613493. The reversal of 613487 is 784316.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 613487 - 2⁴ = 613471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 613487.

It is not an unprimeable number, because it can be changed into a prime (613427) 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, 43814 + ... + 43827.

It is an arithmetic number, because the mean of its divisors is an integer number (175284).

2⁶¹³⁴⁸⁷ is an apocalyptic number.

613487 is a deficient number, since it is larger than the sum of its proper divisors (87649).

613487 is an equidigital number, since it uses as much as digits as its factorization.

613487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87648.

The product of its digits is 4032, while the sum is 29.

The square root of 613487 is about 783.2541094690. The cubic root of 613487 is about 84.9705549683.

The spelling of 613487 in words is "six hundred thirteen thousand, four hundred eighty-seven".