65742907 has 8 divisors (see below), whose sum is σ = 69286160. Its totient is φ = 62208000.

The previous prime is 65742871. The next prime is 65742959. The reversal of 65742907 is 70924756.

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 65742907 - 2¹⁹ = 65218619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65742907.

It is not an unprimeable number, because it can be changed into a prime (65742977) 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, 20407 + ... + 23407.

It is an arithmetic number, because the mean of its divisors is an integer number (8660770).

Almost surely, 2^65742907 is an apocalyptic number.

65742907 is a deficient number, since it is larger than the sum of its proper divisors (3543253).

65742907 is a wasteful number, since it uses less digits than its factorization.

65742907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 65742907 is about 8108.1999852002. The cubic root of 65742907 is about 403.5985846361.

The spelling of 65742907 in words is "sixty-five million, seven hundred forty-two thousand, nine hundred seven".