70650 has 36 divisors (see below), whose sum is σ = 191022. Its totient is φ = 18720.

The previous prime is 70639. The next prime is 70657. The reversal of 70650 is 5607.

It can be written as a sum of positive squares in 3 ways, for example, as 45369 + 25281 = 213^2 + 159^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70657) by changing a digit.

70650 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 372 + ... + 528.

2⁷⁰⁶⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95511).

70650 is an abundant number, since it is smaller than the sum of its proper divisors (120372).

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

70650 is a wasteful number, since it uses less digits than its factorization.

70650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 70650 is about 265.8006772000. The cubic root of 70650 is about 41.3400237754.

The spelling of 70650 in words is "seventy thousand, six hundred fifty".