83487013 has 4 divisors (see below), whose sum is σ = 83647168. Its totient is φ = 83326860.

The previous prime is 83487011. The next prime is 83487023. The reversal of 83487013 is 31078438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83487013 - 2¹ = 83487011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83487013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83487011) 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, 79293 + ... + 80338.

It is an arithmetic number, because the mean of its divisors is an integer number (20911792).

Almost surely, 2^83487013 is an apocalyptic number.

It is an amenable number.

83487013 is a deficient number, since it is larger than the sum of its proper divisors (160155).

83487013 is a wasteful number, since it uses less digits than its factorization.

83487013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160154.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 83487013 is about 9137.1227965919. The cubic root of 83487013 is about 437.0585705924.

The spelling of 83487013 in words is "eighty-three million, four hundred eighty-seven thousand, thirteen".