64015463 has 4 divisors (see below), whose sum is σ = 66798768. Its totient is φ = 61232160.

The previous prime is 64015459. The next prime is 64015481. The reversal of 64015463 is 36451046.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36451046 = 2 ⋅18225523.

It is a cyclic number.

It is not a de Polignac number, because 64015463 - 2² = 64015459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64015423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391618 + ... + 1391663.

It is an arithmetic number, because the mean of its divisors is an integer number (16699692).

Almost surely, 2^64015463 is an apocalyptic number.

64015463 is a deficient number, since it is larger than the sum of its proper divisors (2783305).

64015463 is a wasteful number, since it uses less digits than its factorization.

64015463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783304.

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

The square root of 64015463 is about 8000.9663791320. The cubic root of 64015463 is about 400.0322119892.

The spelling of 64015463 in words is "sixty-four million, fifteen thousand, four hundred sixty-three".