64896216 has 64 divisors (see below), whose sum is σ = 202279680. Its totient is φ = 16855680.

The previous prime is 64896211. The next prime is 64896217. The reversal of 64896216 is 61269846.

It is a super-2 number, since 2×64896216² = 8423037702237312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64896211) 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, 15711 + ... + 19406.

It is an arithmetic number, because the mean of its divisors is an integer number (3160620).

Almost surely, 2^64896216 is an apocalyptic number.

64896216 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

64896216 is an abundant number, since it is smaller than the sum of its proper divisors (137383464).

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

64896216 is a wasteful number, since it uses less digits than its factorization.

64896216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35144 (or 35140 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 64896216 is about 8055.8187665811. The cubic root of 64896216 is about 401.8584685306.

It can be divided in two parts, 64896 and 216, that multiplied together give a square (14017536 = 3744²).

The spelling of 64896216 in words is "sixty-four million, eight hundred ninety-six thousand, two hundred sixteen".