61970 has 8 divisors (see below), whose sum is σ = 111564. Its totient is φ = 24784.

The previous prime is 61967. The next prime is 61979. The reversal of 61970 is 7916.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 961 = 247^2 + 31^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (61979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3089 + ... + 3108.

2⁶¹⁹⁷⁰ is an apocalyptic number.

61970 is a deficient number, since it is larger than the sum of its proper divisors (49594).

61970 is a wasteful number, since it uses less digits than its factorization.

61970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 61970 is about 248.9377432211. The cubic root of 61970 is about 39.5725313708.

The spelling of 61970 in words is "sixty-one thousand, nine hundred seventy".