61448973 has 8 divisors (see below), whose sum is σ = 82118688. Its totient is φ = 40872624.

The previous prime is 61448969. The next prime is 61448987. The reversal of 61448973 is 37984416.

61448973 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 61448973 - 2² = 61448969 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61448993) 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, 21790 + ... + 24447.

It is an arithmetic number, because the mean of its divisors is an integer number (10264836).

Almost surely, 2^61448973 is an apocalyptic number.

It is an amenable number.

61448973 is a deficient number, since it is larger than the sum of its proper divisors (20669715).

61448973 is a wasteful number, since it uses less digits than its factorization.

61448973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46683.

The product of its digits is 145152, while the sum is 42.

The square root of 61448973 is about 7838.9395328705. The cubic root of 61448973 is about 394.6131404378.

The spelling of 61448973 in words is "sixty-one million, four hundred forty-eight thousand, nine hundred seventy-three".