61975907 has 8 divisors (see below), whose sum is σ = 71282016. Its totient is φ = 52782912.

The previous prime is 61975889. The next prime is 61975957. The reversal of 61975907 is 70957916.

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

It is not a de Polignac number, because 61975907 - 2⁶ = 61975843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61975957) 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, 27098 + ... + 29295.

It is an arithmetic number, because the mean of its divisors is an integer number (8910252).

Almost surely, 2^61975907 is an apocalyptic number.

61975907 is a deficient number, since it is larger than the sum of its proper divisors (9306109).

61975907 is a wasteful number, since it uses less digits than its factorization.

61975907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56557.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 61975907 is about 7872.4778183238. The cubic root of 61975907 is about 395.7378868621.

Subtracting 61975907 from its reverse (70957916), we obtain a square (8982009 = 2997²).

The spelling of 61975907 in words is "sixty-one million, nine hundred seventy-five thousand, nine hundred seven".