478611623 has 16 divisors (see below), whose sum is σ = 571677696. Its totient is φ = 391776000.

The previous prime is 478611559. The next prime is 478611647. The reversal of 478611623 is 326116874.

It is not a de Polignac number, because 478611623 - 2⁶ = 478611559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478611223) 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 15 ways as a sum of consecutive naturals, for example, 117623 + ... + 121623.

It is an arithmetic number, because the mean of its divisors is an integer number (35729856).

Almost surely, 2^478611623 is an apocalyptic number.

478611623 is a deficient number, since it is larger than the sum of its proper divisors (93066073).

478611623 is a wasteful number, since it uses less digits than its factorization.

478611623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774.

The product of its digits is 48384, while the sum is 38.

The square root of 478611623 is about 21877.1941299610. The cubic root of 478611623 is about 782.2178947493.

The spelling of 478611623 in words is "four hundred seventy-eight million, six hundred eleven thousand, six hundred twenty-three".