4929987 has 8 divisors (see below), whose sum is σ = 6919360. Its totient is φ = 3113640.

The previous prime is 4929943. The next prime is 4929989. The reversal of 4929987 is 7899294.

It is a happy number.

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

It is not a de Polignac number, because 4929987 - 2⁸ = 4929731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4929989) 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, 43189 + ... + 43302.

It is an arithmetic number, because the mean of its divisors is an integer number (864920).

Almost surely, 2^4929987 is an apocalyptic number.

4929987 is a deficient number, since it is larger than the sum of its proper divisors (1989373).

4929987 is a wasteful number, since it uses less digits than its factorization.

4929987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86513.

The product of its digits is 326592, while the sum is 48.

The square root of 4929987 is about 2220.3574036628. The cubic root of 4929987 is about 170.1957031102.

The spelling of 4929987 in words is "four million, nine hundred twenty-nine thousand, nine hundred eighty-seven".