84050513 has 4 divisors (see below), whose sum is σ = 84069300. Its totient is φ = 84031728.

The previous prime is 84050507. The next prime is 84050539. The reversal of 84050513 is 31505048.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41383489 + 42667024 = 6433^2 + 6532^2 .

It is a cyclic number.

It is not a de Polignac number, because 84050513 - 2¹⁴ = 84034129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84050503) 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, 1631 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (21017325).

Almost surely, 2^84050513 is an apocalyptic number.

It is an amenable number.

84050513 is a deficient number, since it is larger than the sum of its proper divisors (18787).

84050513 is a wasteful number, since it uses less digits than its factorization.

84050513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18786.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 84050513 is about 9167.9066858253. The cubic root of 84050513 is about 438.0396831639.

The spelling of 84050513 in words is "eighty-four million, fifty thousand, five hundred thirteen".