403968965 has 8 divisors (see below), whose sum is σ = 485468448. Its totient is φ = 322704720.

The previous prime is 403968959. The next prime is 403968979. The reversal of 403968965 is 569869304.

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

It is a de Polignac number, because none of the positive numbers 2^k-403968965 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55007 + ... + 61916.

It is an arithmetic number, because the mean of its divisors is an integer number (60683556).

Almost surely, 2^403968965 is an apocalyptic number.

It is an amenable number.

403968965 is a deficient number, since it is larger than the sum of its proper divisors (81499483).

403968965 is a wasteful number, since it uses less digits than its factorization.

403968965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117619.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 403968965 is about 20098.9792029347. The cubic root of 403968965 is about 739.2352490221.

The spelling of 403968965 in words is "four hundred three million, nine hundred sixty-eight thousand, nine hundred sixty-five".