2983987 has 2 divisors, whose sum is σ = 2983988. Its totient is φ = 2983986.

The previous prime is 2983961. The next prime is 2984039. The reversal of 2983987 is 7893892.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2983987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2983927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1491993 + 1491994.

It is an arithmetic number, because the mean of its divisors is an integer number (1491994).

2^2983987 is an apocalyptic number.

2983987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2983987 is an equidigital number, since it uses as much as digits as its factorization.

2983987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 2983987 is about 1727.4220677067. The cubic root of 2983987 is about 143.9678908604.

Adding to 2983987 its product of digits (217728), we get a triangular number (3201715 = T₂₅₃₀).

The spelling of 2983987 in words is "two million, nine hundred eighty-three thousand, nine hundred eighty-seven".