396820567 has 16 divisors (see below), whose sum is σ = 490734720. Its totient is φ = 315468000.

The previous prime is 396820561. The next prime is 396820573. The reversal of 396820567 is 765028693.

It is an interprime number because it is at equal distance from previous prime (396820561) and next prime (396820573).

It is a cyclic number.

It is not a de Polignac number, because 396820567 - 2¹⁵ = 396787799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396820561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70309 + ... + 75742.

It is an arithmetic number, because the mean of its divisors is an integer number (30670920).

Almost surely, 2^396820567 is an apocalyptic number.

396820567 is a deficient number, since it is larger than the sum of its proper divisors (93914153).

396820567 is a wasteful number, since it uses less digits than its factorization.

396820567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146094.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 396820567 is about 19920.3555942157. The cubic root of 396820567 is about 734.8489158352.

It can be divided in two parts, 3 and 96820567, that added together give a triangular number (96820570 = T₁₃₉₁₅).

The spelling of 396820567 in words is "three hundred ninety-six million, eight hundred twenty thousand, five hundred sixty-seven".