2949987 has 4 divisors (see below), whose sum is σ = 3933320. Its totient is φ = 1966656.

The previous prime is 2949953. The next prime is 2950001. The reversal of 2949987 is 7899492.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2949987 - 2⁶ = 2949923 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2949917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491662 + ... + 491667.

It is an arithmetic number, because the mean of its divisors is an integer number (983330).

2^2949987 is an apocalyptic number.

2949987 is a deficient number, since it is larger than the sum of its proper divisors (983333).

2949987 is an equidigital number, since it uses as much as digits as its factorization.

2949987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983332.

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

The square root of 2949987 is about 1717.5526192813. The cubic root of 2949987 is about 143.4190035291.

The spelling of 2949987 in words is "two million, nine hundred forty-nine thousand, nine hundred eighty-seven".