711720678 has 16 divisors (see below), whose sum is σ = 1461913200. Its totient is φ = 230828256.

The previous prime is 711720673. The next prime is 711720679. The reversal of 711720678 is 876027117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711720673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602753 + ... + 1603196.

It is an arithmetic number, because the mean of its divisors is an integer number (91369575).

Almost surely, 2^711720678 is an apocalyptic number.

711720678 is an abundant number, since it is smaller than the sum of its proper divisors (750192522).

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

711720678 is a wasteful number, since it uses less digits than its factorization.

711720678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205991.

The product of its (nonzero) digits is 32928, while the sum is 39.

The square root of 711720678 is about 26678.0935975568. The cubic root of 711720678 is about 892.8322340376.

The spelling of 711720678 in words is "seven hundred eleven million, seven hundred twenty thousand, six hundred seventy-eight".