64342719 has 24 divisors (see below), whose sum is σ = 107321760. Its totient is φ = 36384768.

The previous prime is 64342709. The next prime is 64342723. The reversal of 64342719 is 91724346.

64342719 is a `hidden beast` number, since 643 + 4 + 2 + 7 + 1 + 9 = 666.

It is not a de Polignac number, because 64342719 - 2¹⁵ = 64309951 is a prime.

It is a super-2 number, since 2×64342719² = 8279970976625922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 847 + ... + 11375.

It is an arithmetic number, because the mean of its divisors is an integer number (4471740).

Almost surely, 2^64342719 is an apocalyptic number.

64342719 is a deficient number, since it is larger than the sum of its proper divisors (42979041).

64342719 is a wasteful number, since it uses less digits than its factorization.

64342719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10639 (or 10636 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 64342719 is about 8021.3913381657. The cubic root of 64342719 is about 400.7127272122.

The spelling of 64342719 in words is "sixty-four million, three hundred forty-two thousand, seven hundred nineteen".