4697987 has 4 divisors (see below), whose sum is σ = 5369136. Its totient is φ = 4026840.

The previous prime is 4697983. The next prime is 4698007. The reversal of 4697987 is 7897964.

It is a happy number.

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 4697987 - 2² = 4697983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4697981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335564 + ... + 335577.

It is an arithmetic number, because the mean of its divisors is an integer number (1342284).

Almost surely, 2^4697987 is an apocalyptic number.

4697987 is a deficient number, since it is larger than the sum of its proper divisors (671149).

4697987 is an equidigital number, since it uses as much as digits as its factorization.

4697987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671148.

The product of its digits is 762048, while the sum is 50.

The square root of 4697987 is about 2167.4840253160. The cubic root of 4697987 is about 167.4829506668.

The spelling of 4697987 in words is "four million, six hundred ninety-seven thousand, nine hundred eighty-seven".