671478078 has 16 divisors (see below), whose sum is σ = 1343321856. Its totient is φ = 223765080.

The previous prime is 671478061. The next prime is 671478089. The reversal of 671478078 is 870874176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12525 + ... + 38727.

It is an arithmetic number, because the mean of its divisors is an integer number (83957616).

Almost surely, 2^671478078 is an apocalyptic number.

671478078 is an abundant number, since it is smaller than the sum of its proper divisors (671843778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671478078 is a wasteful number, since it uses less digits than its factorization.

671478078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30479.

The product of its (nonzero) digits is 526848, while the sum is 48.

The square root of 671478078 is about 25912.8940491023. The cubic root of 671478078 is about 875.6770066079.

The spelling of 671478078 in words is "six hundred seventy-one million, four hundred seventy-eight thousand, seventy-eight".