526493887 has 4 divisors (see below), whose sum is σ = 526972320. Its totient is φ = 526015456.

The previous prime is 526493879. The next prime is 526493909. The reversal of 526493887 is 788394625.

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

It is a cyclic number.

It is not a de Polignac number, because 526493887 - 2³ = 526493879 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 (526493827) 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, 237562 + ... + 239767.

It is an arithmetic number, because the mean of its divisors is an integer number (131743080).

Almost surely, 2^526493887 is an apocalyptic number.

526493887 is a deficient number, since it is larger than the sum of its proper divisors (478433).

526493887 is a wasteful number, since it uses less digits than its factorization.

526493887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478432.

The product of its digits is 2903040, while the sum is 52.

The square root of 526493887 is about 22945.4546043438. The cubic root of 526493887 is about 807.4787666748.

The spelling of 526493887 in words is "five hundred twenty-six million, four hundred ninety-three thousand, eight hundred eighty-seven".