64313767 has 12 divisors (see below), whose sum is σ = 75265680. Its totient is φ = 53833248.

The previous prime is 64313749. The next prime is 64313797. The reversal of 64313767 is 76731346.

It is a de Polignac number, because none of the positive numbers 2^k-64313767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64313797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10459 + ... + 15427.

It is an arithmetic number, because the mean of its divisors is an integer number (6272140).

Almost surely, 2^64313767 is an apocalyptic number.

64313767 is a deficient number, since it is larger than the sum of its proper divisors (10951913).

64313767 is an equidigital number, since it uses as much as digits as its factorization.

64313767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062 (or 5019 counting only the distinct ones).

The product of its digits is 63504, while the sum is 37.

The square root of 64313767 is about 8019.5864606599. The cubic root of 64313767 is about 400.6526159021.

It can be divided in two parts, 643137 and 67, that added together give a square (643204 = 802²).

The spelling of 64313767 in words is "sixty-four million, three hundred thirteen thousand, seven hundred sixty-seven".