70900 has 18 divisors (see below), whose sum is σ = 154070. Its totient is φ = 28320.

The previous prime is 70891. The next prime is 70901. The reversal of 70900 is 907.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 144 + 70756 = 12^2 + 266^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70901) by changing a digit.

70900 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 5 ways as a sum of consecutive naturals, for example, 255 + ... + 454.

2⁷⁰⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

70900 is an abundant number, since it is smaller than the sum of its proper divisors (83170).

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

70900 is a wasteful number, since it uses less digits than its factorization.

70900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 70900 is about 266.2705391139. The cubic root of 70900 is about 41.3887279012.

The spelling of 70900 in words is "seventy thousand, nine hundred".