4291988 has 6 divisors (see below), whose sum is σ = 7510986. Its totient is φ = 2145992.

The previous prime is 4291979. The next prime is 4292009. The reversal of 4291988 is 8891924.

It can be written as a sum of positive squares in only one way, i.e., 2365444 + 1926544 = 1538^2 + 1388^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536495 + ... + 536502.

It is an arithmetic number, because the mean of its divisors is an integer number (1251831).

Almost surely, 2^4291988 is an apocalyptic number.

It is an amenable number.

4291988 is a deficient number, since it is larger than the sum of its proper divisors (3218998).

4291988 is a wasteful number, since it uses less digits than its factorization.

4291988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073001 (or 1072999 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 4291988 is about 2071.7113698583. The cubic root of 4291988 is about 162.5122736292.

The spelling of 4291988 in words is "four million, two hundred ninety-one thousand, nine hundred eighty-eight".