3998734 has 8 divisors (see below), whose sum is σ = 6258960. Its totient is φ = 1912416.

The previous prime is 3998719. The next prime is 3998737. The reversal of 3998734 is 4378993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43419 + ... + 43510.

It is an arithmetic number, because the mean of its divisors is an integer number (782370).

Almost surely, 2^3998734 is an apocalyptic number.

3998734 is a deficient number, since it is larger than the sum of its proper divisors (2260226).

3998734 is a wasteful number, since it uses less digits than its factorization.

3998734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86954.

The product of its digits is 163296, while the sum is 43.

The square root of 3998734 is about 1999.6834749530. The cubic root of 3998734 is about 158.7233563486.

The spelling of 3998734 in words is "three million, nine hundred ninety-eight thousand, seven hundred thirty-four".