64009722 has 32 divisors (see below), whose sum is σ = 146621952. Its totient is φ = 18249264.

The previous prime is 64009717. The next prime is 64009753. The reversal of 64009722 is 22790046.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 64009722.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22293 + ... + 24999.

It is an arithmetic number, because the mean of its divisors is an integer number (4581936).

Almost surely, 2^64009722 is an apocalyptic number.

64009722 is an abundant number, since it is smaller than the sum of its proper divisors (82612230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64009722 is a wasteful number, since it uses less digits than its factorization.

64009722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 64009722 is about 8000.6076019262. The cubic root of 64009722 is about 400.0202531412.

Adding to 64009722 its reverse (22790046), we get a palindrome (86799768).

The spelling of 64009722 in words is "sixty-four million, nine thousand, seven hundred twenty-two".