64864827 has 8 divisors (see below), whose sum is σ = 96096080. Its totient is φ = 43243200.

The previous prime is 64864823. The next prime is 64864837. The reversal of 64864827 is 72846846.

It is not a de Polignac number, because 64864827 - 2² = 64864823 is a prime.

It is a super-3 number, since 3×64864827³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64864823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201174 + ... + 1201227.

It is an arithmetic number, because the mean of its divisors is an integer number (12012010).

Almost surely, 2^64864827 is an apocalyptic number.

64864827 is a deficient number, since it is larger than the sum of its proper divisors (31231253).

64864827 is a wasteful number, since it uses less digits than its factorization.

64864827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402410 (or 2402404 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 64864827 is about 8053.8703118439. The cubic root of 64864827 is about 401.7936677841.

The spelling of 64864827 in words is "sixty-four million, eight hundred sixty-four thousand, eight hundred twenty-seven".