4987971 has 18 divisors (see below), whose sum is σ = 7473180. Its totient is φ = 3205776.

The previous prime is 4987967. The next prime is 4987973. The reversal of 4987971 is 1797894.

It is not a de Polignac number, because 4987971 - 2² = 4987967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4987973) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7240 + ... + 7898.

Almost surely, 2^4987971 is an apocalyptic number.

4987971 is a deficient number, since it is larger than the sum of its proper divisors (2485209).

4987971 is a wasteful number, since it uses less digits than its factorization.

4987971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 691 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 4987971 is about 2233.3765916209. The cubic root of 4987971 is about 170.8603558813.

The spelling of 4987971 in words is "four million, nine hundred eighty-seven thousand, nine hundred seventy-one".