396655601 has 8 divisors (see below), whose sum is σ = 401927400. Its totient is φ = 391408128.

The previous prime is 396655579. The next prime is 396655613. The reversal of 396655601 is 106556693.

It can be written as a sum of positive squares in 4 ways, for example, as 6553600 + 390102001 = 2560^2 + 19751^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396655601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396655681) 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, 27995 + ... + 39711.

It is an arithmetic number, because the mean of its divisors is an integer number (50240925).

Almost surely, 2^396655601 is an apocalyptic number.

It is an amenable number.

396655601 is a deficient number, since it is larger than the sum of its proper divisors (5271799).

396655601 is a wasteful number, since it uses less digits than its factorization.

396655601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12163.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 396655601 is about 19916.2145248539. The cubic root of 396655601 is about 734.7470714091.

The spelling of 396655601 in words is "three hundred ninety-six million, six hundred fifty-five thousand, six hundred one".