64015436 has 6 divisors (see below), whose sum is σ = 112027020. Its totient is φ = 32007716.

The previous prime is 64015423. The next prime is 64015447. The reversal of 64015436 is 63451046.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64015399 and 64015408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8001926 + ... + 8001933.

It is an arithmetic number, because the mean of its divisors is an integer number (18671170).

Almost surely, 2^64015436 is an apocalyptic number.

It is an amenable number.

64015436 is a deficient number, since it is larger than the sum of its proper divisors (48011584).

64015436 is a wasteful number, since it uses less digits than its factorization.

64015436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16003863 (or 16003861 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 64015436 is about 8000.9646918356. The cubic root of 64015436 is about 400.0321557483.

The spelling of 64015436 in words is "sixty-four million, fifteen thousand, four hundred thirty-six".