4987949 has 8 divisors (see below), whose sum is σ = 5116320. Its totient is φ = 4861296.

The previous prime is 4987943. The next prime is 4987951. The reversal of 4987949 is 9497894.

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 4987949 - 2⁸ = 4987693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4987897 and 4987906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987943) 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, 6962 + ... + 7644.

It is an arithmetic number, because the mean of its divisors is an integer number (639540).

Almost surely, 2^4987949 is an apocalyptic number.

It is an amenable number.

4987949 is a deficient number, since it is larger than the sum of its proper divisors (128371).

4987949 is a wasteful number, since it uses less digits than its factorization.

4987949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859.

The product of its digits is 653184, while the sum is 50.

The square root of 4987949 is about 2233.3716663377. The cubic root of 4987949 is about 170.8601046814.

The spelling of 4987949 in words is "four million, nine hundred eighty-seven thousand, nine hundred forty-nine".