706423680 has 160 divisors (see below), whose sum is σ = 2522951640. Its totient is φ = 188365824.

The previous prime is 706423643. The next prime is 706423693. The reversal of 706423680 is 86324607.

706423680 is a `hidden beast` number, since 7 + 0 + 642 + 3 + 6 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (160).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45027 + ... + 58653.

Almost surely, 2^706423680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 706423680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261475820).

706423680 is an abundant number, since it is smaller than the sum of its proper divisors (1816527960).

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

706423680 is a wasteful number, since it uses less digits than its factorization.

706423680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13658 (or 13637 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 706423680 is about 26578.6320189734. The cubic root of 706423680 is about 890.6117411877.

The spelling of 706423680 in words is "seven hundred six million, four hundred twenty-three thousand, six hundred eighty".