396858005 has 8 divisors (see below), whose sum is σ = 476941272. Its totient is φ = 317011968.

The previous prime is 396857999. The next prime is 396858023. The reversal of 396858005 is 500858693.

It can be written as a sum of positive squares in 4 ways, for example, as 65399569 + 331458436 = 8087^2 + 18206^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 396858005 - 2⁶ = 396857941 is a prime.

It is a super-2 number, since 2×396858005² = 314992552265160050, which contains 22 as substring.

It is a Duffinian number.

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, 55604 + ... + 62333.

It is an arithmetic number, because the mean of its divisors is an integer number (59617659).

Almost surely, 2^396858005 is an apocalyptic number.

It is an amenable number.

396858005 is a deficient number, since it is larger than the sum of its proper divisors (80083267).

396858005 is a wasteful number, since it uses less digits than its factorization.

396858005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118615.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 396858005 is about 19921.2952641137. The cubic root of 396858005 is about 734.8720248596.

The spelling of 396858005 in words is "three hundred ninety-six million, eight hundred fifty-eight thousand, five".