4028997 has 16 divisors (see below), whose sum is σ = 6180480. Its totient is φ = 2286912.

The previous prime is 4028993. The next prime is 4029001. The reversal of 4028997 is 7998204.

It is an interprime number because it is at equal distance from previous prime (4028993) and next prime (4029001).

It is not a de Polignac number, because 4028997 - 2² = 4028993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3079 + ... + 4187.

It is an arithmetic number, because the mean of its divisors is an integer number (386280).

Almost surely, 2^4028997 is an apocalyptic number.

It is an amenable number.

4028997 is a deficient number, since it is larger than the sum of its proper divisors (2151483).

4028997 is a wasteful number, since it uses less digits than its factorization.

4028997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 4028997 is about 2007.2361594989. The cubic root of 4028997 is about 159.1227642532.

The spelling of 4028997 in words is "four million, twenty-eight thousand, nine hundred ninety-seven".