708647940 has 960 divisors, whose sum is σ = 3278499840. Its totient is φ = 123171840.

The previous prime is 708647909. The next prime is 708647969. The reversal of 708647940 is 49746807.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 30810769 + ... + 30810791.

It is an arithmetic number, because the mean of its divisors is an integer number (3415104).

Almost surely, 2^708647940 is an apocalyptic number.

708647940 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 708647940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639249920).

708647940 is an abundant number, since it is smaller than the sum of its proper divisors (2569851900).

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

708647940 is a wasteful number, since it uses less digits than its factorization.

708647940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 708647940 is about 26620.4421450884. The cubic root of 708647940 is about 891.5454946220.

The spelling of 708647940 in words is "seven hundred eight million, six hundred forty-seven thousand, nine hundred forty".