396434587 has 4 divisors (see below), whose sum is σ = 405654040. Its totient is φ = 387215136.

The previous prime is 396434581. The next prime is 396434593. The reversal of 396434587 is 785434693.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (396434581) and next prime (396434593).

It is a cyclic number.

It is not a de Polignac number, because 396434587 - 2²³ = 388045979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396434587.

It is not an unprimeable number, because it can be changed into a prime (396434581) 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, 4609662 + ... + 4609747.

It is an arithmetic number, because the mean of its divisors is an integer number (101413510).

Almost surely, 2^396434587 is an apocalyptic number.

396434587 is a deficient number, since it is larger than the sum of its proper divisors (9219453).

396434587 is an equidigital number, since it uses as much as digits as its factorization.

396434587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219452.

The product of its digits is 2177280, while the sum is 49.

The square root of 396434587 is about 19910.6651571463. The cubic root of 396434587 is about 734.6105805768.

The spelling of 396434587 in words is "three hundred ninety-six million, four hundred thirty-four thousand, five hundred eighty-seven".