Search a number
-
+
4987957 = 13438923
BaseRepresentation
bin10011000001110000110101
3100101102012011
4103001300311
52234103312
6254524221
760253102
oct23016065
910342164
104987957
1128a7587
121806671
131058470
1493baa9
15687da7
hex4c1c35

4987957 has 8 divisors (see below), whose sum is σ = 5497184. Its totient is φ = 4496688.

The previous prime is 4987951. The next prime is 4987967. The reversal of 4987957 is 7597894.

It is a happy number.

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 4987957 - 211 = 4985909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4987957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987951) 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, 3903 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (687148).

Almost surely, 24987957 is an apocalyptic number.

It is an amenable number.

4987957 is a deficient number, since it is larger than the sum of its proper divisors (509227).

4987957 is a wasteful number, since it uses less digits than its factorization.

4987957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979.

The product of its digits is 635040, while the sum is 49.

The square root of 4987957 is about 2233.3734573510. The cubic root of 4987957 is about 170.8601960269.

The spelling of 4987957 in words is "four million, nine hundred eighty-seven thousand, nine hundred fifty-seven".

Divisors: 1 13 43 559 8923 115999 383689 4987957