70749660 has 48 divisors (see below), whose sum is σ = 200340000. Its totient is φ = 18653184.

The previous prime is 70749619. The next prime is 70749667. The reversal of 70749660 is 6694707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70749667) 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, 1285 + ... + 11964.

It is an arithmetic number, because the mean of its divisors is an integer number (4173750).

Almost surely, 2^70749660 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 70749660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100170000).

70749660 is an abundant number, since it is smaller than the sum of its proper divisors (129590340).

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

70749660 is a wasteful number, since it uses less digits than its factorization.

70749660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13350 (or 13348 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 70749660 is about 8411.2817097039. The cubic root of 70749660 is about 413.5945293820.

The spelling of 70749660 in words is "seventy million, seven hundred forty-nine thousand, six hundred sixty".