396741569 has 8 divisors (see below), whose sum is σ = 454163520. Its totient is φ = 339505776.

The previous prime is 396741557. The next prime is 396741581. The reversal of 396741569 is 965147693.

It is an interprime number because it is at equal distance from previous prime (396741557) and next prime (396741581).

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-396741569 is a prime.

It is a super-4 number, since 4×396741569⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396741589) 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, 41939 + ... + 50520.

It is an arithmetic number, because the mean of its divisors is an integer number (56770440).

Almost surely, 2^396741569 is an apocalyptic number.

It is an amenable number.

396741569 is a deficient number, since it is larger than the sum of its proper divisors (57421951).

396741569 is an equidigital number, since it uses as much as digits as its factorization.

396741569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93079.

The product of its digits is 1224720, while the sum is 50.

The square root of 396741569 is about 19918.3726493908. The cubic root of 396741569 is about 734.8001486659.

The spelling of 396741569 in words is "three hundred ninety-six million, seven hundred forty-one thousand, five hundred sixty-nine".