61973345 has 32 divisors (see below), whose sum is σ = 91687680. Its totient is φ = 39260160.

The previous prime is 61973341. The next prime is 61973357. The reversal of 61973345 is 54337916.

It is a happy number.

61973345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61973345 - 2² = 61973341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61973299 and 61973308.

It is not an unprimeable number, because it can be changed into a prime (61973341) 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 31 ways as a sum of consecutive naturals, for example, 26129 + ... + 28401.

It is an arithmetic number, because the mean of its divisors is an integer number (2865240).

Almost surely, 2^61973345 is an apocalyptic number.

It is an amenable number.

61973345 is a deficient number, since it is larger than the sum of its proper divisors (29714335).

61973345 is a wasteful number, since it uses less digits than its factorization.

61973345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345.

The product of its digits is 68040, while the sum is 38.

The square root of 61973345 is about 7872.3150978603. The cubic root of 61973345 is about 395.7324336976.

The spelling of 61973345 in words is "sixty-one million, nine hundred seventy-three thousand, three hundred forty-five".