78970 has 16 divisors (see below), whose sum is σ = 145800. Its totient is φ = 30784.

The previous prime is 78941. The next prime is 78977. The reversal of 78970 is 7987.

It can be written as a sum of positive squares in 4 ways, for example, as 56169 + 22801 = 237^2 + 151^2 .

It is a plaindrome in base 16.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (78977) 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, 456 + ... + 604.

2⁷⁸⁹⁷⁰ is an apocalyptic number.

78970 is a deficient number, since it is larger than the sum of its proper divisors (66830).

78970 is a wasteful number, since it uses less digits than its factorization.

78970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 78970 is about 281.0160137786. The cubic root of 78970 is about 42.9029721390.

The spelling of 78970 in words is "seventy-eight thousand, nine hundred seventy".