403276855 has 4 divisors (see below), whose sum is σ = 483932232. Its totient is φ = 322621480.

The previous prime is 403276847. The next prime is 403276879. The reversal of 403276855 is 558672304.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 403276855 - 2³ = 403276847 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 40327681 + ... + 40327690.

It is an arithmetic number, because the mean of its divisors is an integer number (120983058).

Almost surely, 2^403276855 is an apocalyptic number.

403276855 is a deficient number, since it is larger than the sum of its proper divisors (80655377).

403276855 is an equidigital number, since it uses as much as digits as its factorization.

403276855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80655376.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 403276855 is about 20081.7542809387. The cubic root of 403276855 is about 738.8128365599.

The spelling of 403276855 in words is "four hundred three million, two hundred seventy-six thousand, eight hundred fifty-five".