64576069 has 16 divisors (see below), whose sum is σ = 69696000. Its totient is φ = 59693760.

The previous prime is 64576051. The next prime is 64576087. The reversal of 64576069 is 96067546.

It is an interprime number because it is at equal distance from previous prime (64576051) and next prime (64576087).

It is a cyclic number.

It is not a de Polignac number, because 64576069 - 2¹¹ = 64574021 is a prime.

It is a super-2 number, since 2×64576069² = 8340137374985522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64571069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97662 + ... + 98320.

It is an arithmetic number, because the mean of its divisors is an integer number (4356000).

Almost surely, 2^64576069 is an apocalyptic number.

It is an amenable number.

64576069 is a deficient number, since it is larger than the sum of its proper divisors (5119931).

64576069 is a wasteful number, since it uses less digits than its factorization.

64576069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 64576069 is about 8035.9236556851. The cubic root of 64576069 is about 401.1965607866.

The spelling of 64576069 in words is "sixty-four million, five hundred seventy-six thousand, sixty-nine".