396430477 has 4 divisors (see below), whose sum is σ = 404865216. Its totient is φ = 387995740.

The previous prime is 396430457. The next prime is 396430481. The reversal of 396430477 is 774034693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774034693 = 11447 ⋅67619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396430477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396430427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217299 + ... + 4217392.

It is an arithmetic number, because the mean of its divisors is an integer number (101216304).

Almost surely, 2^396430477 is an apocalyptic number.

It is an amenable number.

396430477 is a deficient number, since it is larger than the sum of its proper divisors (8434739).

396430477 is an equidigital number, since it uses as much as digits as its factorization.

396430477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434738.

The product of its (nonzero) digits is 381024, while the sum is 43.

The square root of 396430477 is about 19910.5619458618. The cubic root of 396430477 is about 734.6080418983.

The spelling of 396430477 in words is "three hundred ninety-six million, four hundred thirty thousand, four hundred seventy-seven".