396409967 has 8 divisors (see below), whose sum is σ = 404643600. Its totient is φ = 388226944.

The previous prime is 396409957. The next prime is 396409973. The reversal of 396409967 is 769904693.

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

It is a cyclic number.

It is not a de Polignac number, because 396409967 - 2¹⁴ = 396393583 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 (396409957) 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 7 ways as a sum of consecutive naturals, for example, 3383 + ... + 28359.

It is an arithmetic number, because the mean of its divisors is an integer number (50580450).

Almost surely, 2^396409967 is an apocalyptic number.

396409967 is a deficient number, since it is larger than the sum of its proper divisors (8233633).

396409967 is a wasteful number, since it uses less digits than its factorization.

396409967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25305.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The square root of 396409967 is about 19910.0468859317. The cubic root of 396409967 is about 734.5953729507.

The spelling of 396409967 in words is "three hundred ninety-six million, four hundred nine thousand, nine hundred sixty-seven".