84380513 has 4 divisors (see below), whose sum is σ = 96434880. Its totient is φ = 72326148.

The previous prime is 84380509. The next prime is 84380563. The reversal of 84380513 is 31508348.

It is a happy number.

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 84380513 - 2² = 84380509 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 84380513.

It is not an unprimeable number, because it can be changed into a prime (84380563) 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, 6027173 + ... + 6027186.

It is an arithmetic number, because the mean of its divisors is an integer number (24108720).

Almost surely, 2^84380513 is an apocalyptic number.

It is an amenable number.

84380513 is a deficient number, since it is larger than the sum of its proper divisors (12054367).

84380513 is a wasteful number, since it uses less digits than its factorization.

84380513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12054366.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 84380513 is about 9185.8866202452. The cubic root of 84380513 is about 438.6122131815.

The spelling of 84380513 in words is "eighty-four million, three hundred eighty thousand, five hundred thirteen".