64700422 has 8 divisors (see below), whose sum is σ = 97089696. Its totient is φ = 32337192.

The previous prime is 64700417. The next prime is 64700429. The reversal of 64700422 is 22400746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64700422² = 8372289213956168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64700429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848 + ... + 11524.

It is an arithmetic number, because the mean of its divisors is an integer number (12136212).

Almost surely, 2^64700422 is an apocalyptic number.

64700422 is a deficient number, since it is larger than the sum of its proper divisors (32389274).

64700422 is a wasteful number, since it uses less digits than its factorization.

64700422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13022.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 64700422 is about 8043.6572527675. The cubic root of 64700422 is about 401.4539213786.

The spelling of 64700422 in words is "sixty-four million, seven hundred thousand, four hundred twenty-two".