70930 has 16 divisors (see below), whose sum is σ = 131544. Its totient is φ = 27520.

The previous prime is 70921. The next prime is 70937. The reversal of 70930 is 3907.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54289 + 16641 = 233^2 + 129^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70898 and 70907.

It is not an unprimeable number, because it can be changed into a prime (70937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324 + ... + 496.

2⁷⁰⁹³⁰ is an apocalyptic number.

70930 is a deficient number, since it is larger than the sum of its proper divisors (60614).

70930 is a wasteful number, since it uses less digits than its factorization.

70930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 70930 is about 266.3268668385. The cubic root of 70930 is about 41.3945646983.

It can be divided in two parts, 70 and 930, that added together give a cube (1000 = 10³).

The spelling of 70930 in words is "seventy thousand, nine hundred thirty".