64654620 has 48 divisors (see below), whose sum is σ = 181926528. Its totient is φ = 17156160.

The previous prime is 64654609. The next prime is 64654631. The reversal of 64654620 is 2645646.

It is an interprime number because it is at equal distance from previous prime (64654609) and next prime (64654631).

It is a congruent number.

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, 10107 + ... + 15213.

It is an arithmetic number, because the mean of its divisors is an integer number (3790136).

Almost surely, 2^64654620 is an apocalyptic number.

64654620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64654620 is an abundant number, since it is smaller than the sum of its proper divisors (117271908).

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

64654620 is a wasteful number, since it uses less digits than its factorization.

64654620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 64654620 is about 8040.8096607245. The cubic root of 64654620 is about 401.3591680910.

The spelling of 64654620 in words is "sixty-four million, six hundred fifty-four thousand, six hundred twenty".