9887457 has 8 divisors (see below), whose sum is σ = 13217760. Its totient is φ = 6574400.

The previous prime is 9887441. The next prime is 9887503. The reversal of 9887457 is 7547889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9887457 - 2⁴ = 9887441 is a prime.

9887457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9887407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907 + ... + 5312.

It is an arithmetic number, because the mean of its divisors is an integer number (1652220).

Almost surely, 2^9887457 is an apocalyptic number.

It is an amenable number.

9887457 is a deficient number, since it is larger than the sum of its proper divisors (3330303).

9887457 is a wasteful number, since it uses less digits than its factorization.

9887457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8623.

The product of its digits is 564480, while the sum is 48.

The square root of 9887457 is about 3144.4326992321. The cubic root of 9887457 is about 214.6321961013.

The spelling of 9887457 in words is "nine million, eight hundred eighty-seven thousand, four hundred fifty-seven".