2901987 has 20 divisors (see below), whose sum is σ = 4730616. Its totient is φ = 1758240.

The previous prime is 2901931. The next prime is 2901989. The reversal of 2901987 is 7891092.

It is a happy number.

It is not a de Polignac number, because 2901987 - 2¹⁵ = 2869219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2901989) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 738 + ... + 2519.

2^2901987 is an apocalyptic number.

2901987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2901987 is a deficient number, since it is larger than the sum of its proper divisors (1828629).

2901987 is a wasteful number, since it uses less digits than its factorization.

2901987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280 (or 3271 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2901987 is about 1703.5219399820. The cubic root of 2901987 is about 142.6368767927.

The spelling of 2901987 in words is "two million, nine hundred one thousand, nine hundred eighty-seven".