65477913 has 4 divisors (see below), whose sum is σ = 87303888. Its totient is φ = 43651940.

The previous prime is 65477903. The next prime is 65477927. The reversal of 65477913 is 31977456.

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 65477913 - 2¹³ = 65469721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65477903) 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, 10912983 + ... + 10912988.

It is an arithmetic number, because the mean of its divisors is an integer number (21825972).

Almost surely, 2^65477913 is an apocalyptic number.

It is an amenable number.

65477913 is a deficient number, since it is larger than the sum of its proper divisors (21825975).

65477913 is a wasteful number, since it uses less digits than its factorization.

65477913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21825974.

The product of its digits is 158760, while the sum is 42.

The square root of 65477913 is about 8091.8423736501. The cubic root of 65477913 is about 403.0555844903.

The spelling of 65477913 in words is "sixty-five million, four hundred seventy-seven thousand, nine hundred thirteen".