6554987 has 8 divisors (see below), whose sum is σ = 6716736. Its totient is φ = 6394752.

The previous prime is 6554983. The next prime is 6555007. The reversal of 6554987 is 7894556.

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 6554987 - 2² = 6554983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6554983) 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, 17678 + ... + 18044.

It is an arithmetic number, because the mean of its divisors is an integer number (839592).

Almost surely, 2^6554987 is an apocalyptic number.

6554987 is a deficient number, since it is larger than the sum of its proper divisors (161749).

6554987 is a wasteful number, since it uses less digits than its factorization.

6554987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its digits is 302400, while the sum is 44.

The square root of 6554987 is about 2560.2708841058. The cubic root of 6554987 is about 187.1503361783.

The spelling of 6554987 in words is "six million, five hundred fifty-four thousand, nine hundred eighty-seven".