478611387 has 96 divisors (see below), whose sum is σ = 819486720. Its totient is φ = 267079680.

The previous prime is 478611383. The next prime is 478611401. The reversal of 478611387 is 783116874.

It is not a de Polignac number, because 478611387 - 2² = 478611383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478611383) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4235443 + ... + 4235555.

It is an arithmetic number, because the mean of its divisors is an integer number (8536320).

Almost surely, 2^478611387 is an apocalyptic number.

478611387 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

478611387 is a deficient number, since it is larger than the sum of its proper divisors (340875333).

478611387 is a wasteful number, since it uses less digits than its factorization.

478611387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 230 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 478611387 is about 21877.1887362156. The cubic root of 478611387 is about 782.2177661806.

The spelling of 478611387 in words is "four hundred seventy-eight million, six hundred eleven thousand, three hundred eighty-seven".