396630511 has 4 divisors (see below), whose sum is σ = 399005712. Its totient is φ = 394255312.

The previous prime is 396630503. The next prime is 396630557. The reversal of 396630511 is 115036693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115036693 = 41 ⋅2805773.

It is a cyclic number.

It is not a de Polignac number, because 396630511 - 2³ = 396630503 is a prime.

It is a super-2 number, since 2×396630511² = 314631524512242242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396631511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187350 + ... + 1187683.

It is an arithmetic number, because the mean of its divisors is an integer number (99751428).

Almost surely, 2^396630511 is an apocalyptic number.

396630511 is a deficient number, since it is larger than the sum of its proper divisors (2375201).

396630511 is a wasteful number, since it uses less digits than its factorization.

396630511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375200.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 396630511 is about 19915.5846261163. The cubic root of 396630511 is about 734.7315792184.

The spelling of 396630511 in words is "three hundred ninety-six million, six hundred thirty thousand, five hundred eleven".