708471540 has 144 divisors (see below), whose sum is σ = 2467850112. Its totient is φ = 161157888.

The previous prime is 708471527. The next prime is 708471557. The reversal of 708471540 is 45174807.

708471540 is a `hidden beast` number, since 70 + 8 + 47 + 1 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 708471495 and 708471504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284782 + ... + 287258.

It is an arithmetic number, because the mean of its divisors is an integer number (17137848).

Almost surely, 2^708471540 is an apocalyptic number.

708471540 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 708471540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233925056).

708471540 is an abundant number, since it is smaller than the sum of its proper divisors (1759378572).

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

708471540 is a wasteful number, since it uses less digits than its factorization.

708471540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 708471540 is about 26617.1286956351. The cubic root of 708471540 is about 891.4715125747.

The spelling of 708471540 in words is "seven hundred eight million, four hundred seventy-one thousand, five hundred forty".