4649987 has 4 divisors (see below), whose sum is σ = 4661160. Its totient is φ = 4638816.

The previous prime is 4649971. The next prime is 4650007. The reversal of 4649987 is 7899464.

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 4649987 - 2⁴ = 4649971 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (4649587) 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, 4937 + ... + 5802.

It is an arithmetic number, because the mean of its divisors is an integer number (1165290).

Almost surely, 2^4649987 is an apocalyptic number.

4649987 is a deficient number, since it is larger than the sum of its proper divisors (11173).

4649987 is a wasteful number, since it uses less digits than its factorization.

4649987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172.

The product of its digits is 435456, while the sum is 47.

The square root of 4649987 is about 2156.3828509799. The cubic root of 4649987 is about 166.9105979222.

The spelling of 4649987 in words is "four million, six hundred forty-nine thousand, nine hundred eighty-seven".