532686639 has 4 divisors (see below), whose sum is σ = 710248856. Its totient is φ = 355124424.

The previous prime is 532686631. The next prime is 532686643. The reversal of 532686639 is 936686235.

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

It is not a de Polignac number, because 532686639 - 2³ = 532686631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532686631) 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, 88781104 + ... + 88781109.

It is an arithmetic number, because the mean of its divisors is an integer number (177562214).

Almost surely, 2^532686639 is an apocalyptic number.

532686639 is a deficient number, since it is larger than the sum of its proper divisors (177562217).

532686639 is a wasteful number, since it uses less digits than its factorization.

532686639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177562216.

The product of its digits is 1399680, while the sum is 48.

The square root of 532686639 is about 23080.0051776424. The cubic root of 532686639 is about 810.6323563745.

The spelling of 532686639 in words is "five hundred thirty-two million, six hundred eighty-six thousand, six hundred thirty-nine".