396753811 has 4 divisors (see below), whose sum is σ = 397743624. Its totient is φ = 395764000.

The previous prime is 396753809. The next prime is 396753823. The reversal of 396753811 is 118357693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118357693 = 41 ⋅2886773.

It is a cyclic number.

It is not a de Polignac number, because 396753811 - 2¹ = 396753809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396753311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494305 + ... + 495106.

It is an arithmetic number, because the mean of its divisors is an integer number (99435906).

Almost surely, 2^396753811 is an apocalyptic number.

396753811 is a deficient number, since it is larger than the sum of its proper divisors (989813).

396753811 is an equidigital number, since it uses as much as digits as its factorization.

396753811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989812.

The product of its digits is 136080, while the sum is 43.

The square root of 396753811 is about 19918.6799512417. The cubic root of 396753811 is about 734.8077063404.

The spelling of 396753811 in words is "three hundred ninety-six million, seven hundred fifty-three thousand, eight hundred eleven".