61970979 has 8 divisors (see below), whose sum is σ = 94432000. Its totient is φ = 35411976.

The previous prime is 61970977. The next prime is 61970983. The reversal of 61970979 is 97907916.

61970979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61970979 - 2¹ = 61970977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61970971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475479 + ... + 1475520.

It is an arithmetic number, because the mean of its divisors is an integer number (11804000).

Almost surely, 2^61970979 is an apocalyptic number.

61970979 is a deficient number, since it is larger than the sum of its proper divisors (32461021).

61970979 is a wasteful number, since it uses less digits than its factorization.

61970979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951009.

The product of its (nonzero) digits is 214326, while the sum is 48.

The square root of 61970979 is about 7872.1648229696. The cubic root of 61970979 is about 395.7273975817.

The spelling of 61970979 in words is "sixty-one million, nine hundred seventy thousand, nine hundred seventy-nine".