61965607 has 4 divisors (see below), whose sum is σ = 67598856. Its totient is φ = 56332360.

The previous prime is 61965601. The next prime is 61965619. The reversal of 61965607 is 70656916.

61965607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61965607 - 2¹⁹ = 61441319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61965607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61965601) 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 3 ways as a sum of consecutive naturals, for example, 2816608 + ... + 2816629.

It is an arithmetic number, because the mean of its divisors is an integer number (16899714).

Almost surely, 2^61965607 is an apocalyptic number.

61965607 is a deficient number, since it is larger than the sum of its proper divisors (5633249).

61965607 is a wasteful number, since it uses less digits than its factorization.

61965607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5633248.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 61965607 is about 7871.8236133694. The cubic root of 61965607 is about 395.7159626109.

The spelling of 61965607 in words is "sixty-one million, nine hundred sixty-five thousand, six hundred seven".