64134677 has 4 divisors (see below), whose sum is σ = 64213056. Its totient is φ = 64056300.

The previous prime is 64134673. The next prime is 64134757. The reversal of 64134677 is 77643146.

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 64134677 - 2² = 64134673 is a prime.

It is a super-2 number, since 2×64134677² = 8226513587788658, which contains 22 as substring.

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 64134677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64134673) 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, 37949 + ... + 39602.

It is an arithmetic number, because the mean of its divisors is an integer number (16053264).

Almost surely, 2^64134677 is an apocalyptic number.

It is an amenable number.

64134677 is a deficient number, since it is larger than the sum of its proper divisors (78379).

64134677 is an equidigital number, since it uses as much as digits as its factorization.

64134677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78378.

The product of its digits is 84672, while the sum is 38.

The square root of 64134677 is about 8008.4128889562. The cubic root of 64134677 is about 400.2803805043.

The spelling of 64134677 in words is "sixty-four million, one hundred thirty-four thousand, six hundred seventy-seven".