70735580 has 48 divisors (see below), whose sum is σ = 155796480. Its totient is φ = 26925888.

The previous prime is 70735579. The next prime is 70735591. The reversal of 70735580 is 8553707.

It is a self number, because there is not a number n which added to its sum of digits gives 70735580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168611 + ... + 169029.

It is an arithmetic number, because the mean of its divisors is an integer number (3245760).

Almost surely, 2^70735580 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 70735580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77898240).

70735580 is an abundant number, since it is smaller than the sum of its proper divisors (85060900).

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

70735580 is a wasteful number, since it uses less digits than its factorization.

70735580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 70735580 is about 8410.4446969230. Note that the first 3 decimals coincide. The cubic root of 70735580 is about 413.5670908647.

The spelling of 70735580 in words is "seventy million, seven hundred thirty-five thousand, five hundred eighty".