478403787 has 16 divisors (see below), whose sum is σ = 643375872. Its totient is φ = 316192800.

The previous prime is 478403777. The next prime is 478403789. The reversal of 478403787 is 787304874.

It is not a de Polignac number, because 478403787 - 2⁸ = 478403531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478403789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373993 + ... + 375269.

It is an arithmetic number, because the mean of its divisors is an integer number (40210992).

Almost surely, 2^478403787 is an apocalyptic number.

478403787 is a deficient number, since it is larger than the sum of its proper divisors (164972085).

478403787 is a wasteful number, since it uses less digits than its factorization.

478403787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258.

The product of its (nonzero) digits is 1053696, while the sum is 48.

The square root of 478403787 is about 21872.4435534761. The cubic root of 478403787 is about 782.1046529135.

The spelling of 478403787 in words is "four hundred seventy-eight million, four hundred three thousand, seven hundred eighty-seven".