61979029 has 8 divisors (see below), whose sum is σ = 70982528. Its totient is φ = 53012880.

The previous prime is 61979009. The next prime is 61979051. The reversal of 61979029 is 92097916.

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

It is a cyclic number.

It is not a de Polignac number, because 61979029 - 2⁷ = 61978901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61979009) 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, 5682 + ... + 12499.

It is an arithmetic number, because the mean of its divisors is an integer number (8872816).

Almost surely, 2^61979029 is an apocalyptic number.

It is an amenable number.

61979029 is a deficient number, since it is larger than the sum of its proper divisors (9003499).

61979029 is a wasteful number, since it uses less digits than its factorization.

61979029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18675.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 61979029 is about 7872.6761015553. The cubic root of 61979029 is about 395.7445317719.

The spelling of 61979029 in words is "sixty-one million, nine hundred seventy-nine thousand, twenty-nine".