70989960 has 192 divisors, whose sum is σ = 238723200. Its totient is φ = 16850944.

The previous prime is 70989959. The next prime is 70989973. The reversal of 70989960 is 6998907.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 797596 + ... + 797684.

It is an arithmetic number, because the mean of its divisors is an integer number (1243350).

Almost surely, 2^70989960 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 70989960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119361600).

70989960 is an abundant number, since it is smaller than the sum of its proper divisors (167733240).

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

70989960 is a wasteful number, since it uses less digits than its factorization.

70989960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 70989960 is about 8425.5539877209. The cubic root of 70989960 is about 414.0622558014.

The spelling of 70989960 in words is "seventy million, nine hundred eighty-nine thousand, nine hundred sixty".