678506074 has 32 divisors (see below), whose sum is σ = 1165043520. Its totient is φ = 294306048.

The previous prime is 678506071. The next prime is 678506107. The reversal of 678506074 is 470605876.

It is a self number, because there is not a number n which added to its sum of digits gives 678506074.

It is not an unprimeable number, because it can be changed into a prime (678506071) 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, 9709 + ... + 38095.

It is an arithmetic number, because the mean of its divisors is an integer number (36407610).

Almost surely, 2^678506074 is an apocalyptic number.

678506074 is a deficient number, since it is larger than the sum of its proper divisors (486537446).

678506074 is a wasteful number, since it uses less digits than its factorization.

678506074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28462.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 678506074 is about 26048.1491473003. The cubic root of 678506074 is about 878.7214879322.

The spelling of 678506074 in words is "six hundred seventy-eight million, five hundred six thousand, seventy-four".