71070678 has 72 divisors (see below), whose sum is σ = 188599320. Its totient is φ = 19232640.

The previous prime is 71070641. The next prime is 71070679. The reversal of 71070678 is 87607017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71070679) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14638 + ... + 18878.

It is an arithmetic number, because the mean of its divisors is an integer number (2619435).

Almost surely, 2^71070678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71070678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94299660).

71070678 is an abundant number, since it is smaller than the sum of its proper divisors (117528642).

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

71070678 is a wasteful number, since it uses less digits than its factorization.

71070678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282 (or 4272 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The square root of 71070678 is about 8430.3426976606. The cubic root of 71070678 is about 414.2191306503.

The spelling of 71070678 in words is "seventy-one million, seventy thousand, six hundred seventy-eight".