4351998 has 16 divisors (see below), whose sum is σ = 9947520. Its totient is φ = 1243416.

The previous prime is 4351981. The next prime is 4352003. The reversal of 4351998 is 8991534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51768 + ... + 51851.

It is an arithmetic number, because the mean of its divisors is an integer number (621720).

Almost surely, 2^4351998 is an apocalyptic number.

4351998 is an abundant number, since it is smaller than the sum of its proper divisors (5595522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4351998 is a wasteful number, since it uses less digits than its factorization.

4351998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103631.

The product of its digits is 38880, while the sum is 39.

The square root of 4351998 is about 2086.1442903117. The cubic root of 4351998 is about 163.2661790665.

The spelling of 4351998 in words is "four million, three hundred fifty-one thousand, nine hundred ninety-eight".