70529680 has 80 divisors (see below), whose sum is σ = 179207280. Its totient is φ = 25657344.

The previous prime is 70529677. The next prime is 70529687. The reversal of 70529680 is 8692507.

It can be written as a sum of positive squares in 8 ways, for example, as 19607184 + 50922496 = 4428^2 + 7136^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (70529687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75456 + ... + 76384.

It is an arithmetic number, because the mean of its divisors is an integer number (2240091).

Almost surely, 2^70529680 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 70529680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89603640).

70529680 is an abundant number, since it is smaller than the sum of its proper divisors (108677600).

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

70529680 is a wasteful number, since it uses less digits than its factorization.

70529680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 70529680 is about 8398.1950441747. The cubic root of 70529680 is about 413.1654249204.

The spelling of 70529680 in words is "seventy million, five hundred twenty-nine thousand, six hundred eighty".