64220996 has 24 divisors (see below), whose sum is σ = 130072320. Its totient is φ = 27173952.

The previous prime is 64220977. The next prime is 64221013. The reversal of 64220996 is 69902246.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12305 + ... + 16728.

It is an arithmetic number, because the mean of its divisors is an integer number (5419680).

Almost surely, 2^64220996 is an apocalyptic number.

It is an amenable number.

64220996 is an abundant number, since it is smaller than the sum of its proper divisors (65851324).

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

64220996 is a wasteful number, since it uses less digits than its factorization.

64220996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29123 (or 29121 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 64220996 is about 8013.8003469016. The cubic root of 64220996 is about 400.4598794080.

The spelling of 64220996 in words is "sixty-four million, two hundred twenty thousand, nine hundred ninety-six".