2772987 has 8 divisors (see below), whose sum is σ = 4225536. Its totient is φ = 1584552.

The previous prime is 2772977. The next prime is 2772997. The reversal of 2772987 is 7892772.

It is an interprime number because it is at equal distance from previous prime (2772977) and next prime (2772997).

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

It is not a de Polignac number, because 2772987 - 2⁴ = 2772971 is a prime.

2772987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2772967) 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, 66003 + ... + 66044.

It is an arithmetic number, because the mean of its divisors is an integer number (528192).

2^2772987 is an apocalyptic number.

2772987 is a deficient number, since it is larger than the sum of its proper divisors (1452549).

2772987 is a wasteful number, since it uses less digits than its factorization.

2772987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132057.

The product of its digits is 98784, while the sum is 42.

The square root of 2772987 is about 1665.2288131065. The cubic root of 2772987 is about 140.4912504102.

The spelling of 2772987 in words is "two million, seven hundred seventy-two thousand, nine hundred eighty-seven".