716998638 has 16 divisors (see below), whose sum is σ = 1437314256. Its totient is φ = 238446720.

The previous prime is 716998631. The next prime is 716998651. The reversal of 716998638 is 836899617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716998631) 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, 135393 + ... + 140588.

It is an arithmetic number, because the mean of its divisors is an integer number (89832141).

Almost surely, 2^716998638 is an apocalyptic number.

716998638 is an abundant number, since it is smaller than the sum of its proper divisors (720315618).

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

716998638 is a wasteful number, since it uses less digits than its factorization.

716998638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276419.

The product of its digits is 3919104, while the sum is 57.

The square root of 716998638 is about 26776.8302455686. The cubic root of 716998638 is about 895.0338149786.

The spelling of 716998638 in words is "seven hundred sixteen million, nine hundred ninety-eight thousand, six hundred thirty-eight".