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2987959 = 131912097
BaseRepresentation
bin1011011001011110110111
312121210201011
423121132313
51231103314
6144013051
734253152
oct13313667
95553634
102987959
111760997
121001187
13808030
1457ac99
153e04c4
hex2d97b7

2987959 has 8 divisors (see below), whose sum is σ = 3387440. Its totient is φ = 2612736.

The previous prime is 2987947. The next prime is 2987969. The reversal of 2987959 is 9597892.

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 2987959 - 215 = 2955191 is a prime.

It is a d-powerful number, because it can be written as 213 + 9 + 87 + 77 + 9 + 5 + 95 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987969) 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, 5802 + ... + 6295.

It is an arithmetic number, because the mean of its divisors is an integer number (423430).

22987959 is an apocalyptic number.

2987959 is a deficient number, since it is larger than the sum of its proper divisors (399481).

2987959 is a wasteful number, since it uses less digits than its factorization.

2987959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12129.

The product of its digits is 408240, while the sum is 49.

The square root of 2987959 is about 1728.5713754427. The cubic root of 2987959 is about 144.0317413311.

The spelling of 2987959 in words is "two million, nine hundred eighty-seven thousand, nine hundred fifty-nine".

Divisors: 1 13 19 247 12097 157261 229843 2987959