713534640 has 320 divisors, whose sum is σ = 2799154176. Its totient is φ = 146313216.

The previous prime is 713534639. The next prime is 713534669. The reversal of 713534640 is 46435317.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 807639 + ... + 808521.

Almost surely, 2^713534640 is an apocalyptic number.

713534640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 713534640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399577088).

713534640 is an abundant number, since it is smaller than the sum of its proper divisors (2085619536).

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

713534640 is a wasteful number, since it uses less digits than its factorization.

713534640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 713534640 is about 26712.0691823003. The cubic root of 713534640 is about 893.5901108343.

Adding to 713534640 its reverse (46435317), we get a palindrome (759969957).

The spelling of 713534640 in words is "seven hundred thirteen million, five hundred thirty-four thousand, six hundred forty".