83439700587 has 36 divisors (see below), whose sum is σ = 129276070840. Its totient is φ = 53185910976.

The previous prime is 83439700529. The next prime is 83439700627. The reversal of 83439700587 is 78500793438.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 83439700587 - 2¹⁴ = 83439684203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83439700087) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34520803 + ... + 34523219.

Almost surely, 2^83439700587 is an apocalyptic number.

83439700587 is a deficient number, since it is larger than the sum of its proper divisors (45836370253).

83439700587 is an frugal number, since it uses more digits than its factorization.

83439700587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 83439700587 in words is "eighty-three billion, four hundred thirty-nine million, seven hundred thousand, five hundred eighty-seven".