398735 has 8 divisors (see below), whose sum is σ = 506736. Its totient is φ = 300160.

The previous prime is 398731. The next prime is 398759. The reversal of 398735 is 537893.

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

It is not a de Polignac number, because 398735 - 2² = 398731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398695 and 398704.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398735.

It is not an unprimeable number, because it can be changed into a prime (398731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2261 + ... + 2430.

It is an arithmetic number, because the mean of its divisors is an integer number (63342).

2³⁹⁸⁷³⁵ is an apocalyptic number.

398735 is a deficient number, since it is larger than the sum of its proper divisors (108001).

398735 is a wasteful number, since it uses less digits than its factorization.

398735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713.

The product of its digits is 22680, while the sum is 35.

The square root of 398735 is about 631.4546697903. The cubic root of 398735 is about 73.6028762857.

The spelling of 398735 in words is "three hundred ninety-eight thousand, seven hundred thirty-five".