65612693 has 4 divisors (see below), whose sum is σ = 65632800. Its totient is φ = 65592588.

The previous prime is 65612653. The next prime is 65612699. The reversal of 65612693 is 39621656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65612693 - 2¹⁰ = 65611669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65612699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3905 + ... + 12102.

It is an arithmetic number, because the mean of its divisors is an integer number (16408200).

Almost surely, 2^65612693 is an apocalyptic number.

It is an amenable number.

65612693 is a deficient number, since it is larger than the sum of its proper divisors (20107).

65612693 is a wasteful number, since it uses less digits than its factorization.

65612693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20106.

The product of its digits is 58320, while the sum is 38.

The square root of 65612693 is about 8100.1662328621. The cubic root of 65612693 is about 403.3319453693.

The spelling of 65612693 in words is "sixty-five million, six hundred twelve thousand, six hundred ninety-three".