64226397 has 16 divisors (see below), whose sum is σ = 87912000. Its totient is φ = 41693184.

The previous prime is 64226381. The next prime is 64226399. The reversal of 64226397 is 79362246.

It is not a de Polignac number, because 64226397 - 2⁴ = 64226381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64226399) 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, 17629 + ... + 20957.

It is an arithmetic number, because the mean of its divisors is an integer number (5494500).

Almost surely, 2^64226397 is an apocalyptic number.

It is an amenable number.

64226397 is a deficient number, since it is larger than the sum of its proper divisors (23685603).

64226397 is a wasteful number, since it uses less digits than its factorization.

64226397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500.

The product of its digits is 108864, while the sum is 39.

The square root of 64226397 is about 8014.1373210097. The cubic root of 64226397 is about 400.4711053482.

The spelling of 64226397 in words is "sixty-four million, two hundred twenty-six thousand, three hundred ninety-seven".