398695 has 12 divisors (see below), whose sum is σ = 526680. Its totient is φ = 289520.

The previous prime is 398693. The next prime is 398711. The reversal of 398695 is 596893.

398695 = T₂₄ + T₂₅ + ... + T₁₃₃.

It is not a de Polignac number, because 398695 - 2¹ = 398693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276 + ... + 934.

It is an arithmetic number, because the mean of its divisors is an integer number (43890).

2³⁹⁸⁶⁹⁵ is an apocalyptic number.

398695 is a deficient number, since it is larger than the sum of its proper divisors (127985).

398695 is a wasteful number, since it uses less digits than its factorization.

398695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 675 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 398695 is about 631.4229960969. The cubic root of 398695 is about 73.6004149906.

The spelling of 398695 in words is "three hundred ninety-eight thousand, six hundred ninety-five".