64226487 has 32 divisors (see below), whose sum is σ = 96832512. Its totient is φ = 37597824.

The previous prime is 64226483. The next prime is 64226489. The reversal of 64226487 is 78462246.

64226487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64226487 - 2² = 64226483 is a prime.

It is a super-2 number, since 2×64226487² = 8250083264722338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64226483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67348 + ... + 68294.

It is an arithmetic number, because the mean of its divisors is an integer number (3026016).

Almost surely, 2^64226487 is an apocalyptic number.

64226487 is a deficient number, since it is larger than the sum of its proper divisors (32606025).

64226487 is a wasteful number, since it uses less digits than its factorization.

64226487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047.

The product of its digits is 129024, while the sum is 39.

The square root of 64226487 is about 8014.1429360849. The cubic root of 64226487 is about 400.4712924072.

The spelling of 64226487 in words is "sixty-four million, two hundred twenty-six thousand, four hundred eighty-seven".