64621122 has 32 divisors (see below), whose sum is σ = 135603072. Its totient is φ = 20490624.

The previous prime is 64621103. The next prime is 64621127. The reversal of 64621122 is 22112646.

It is a junction number, because it is equal to n+sod(n) for n = 64621092 and 64621101.

It is not an unprimeable number, because it can be changed into a prime (64621127) 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 15 ways as a sum of consecutive naturals, for example, 25998 + ... + 28374.

It is an arithmetic number, because the mean of its divisors is an integer number (4237596).

Almost surely, 2^64621122 is an apocalyptic number.

64621122 is an abundant number, since it is smaller than the sum of its proper divisors (70981950).

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

64621122 is a wasteful number, since it uses less digits than its factorization.

64621122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602.

The product of its digits is 1152, while the sum is 24.

The square root of 64621122 is about 8038.7263916618. The cubic root of 64621122 is about 401.2898404749.

Adding to 64621122 its reverse (22112646), we get a palindrome (86733768).

The spelling of 64621122 in words is "sixty-four million, six hundred twenty-one thousand, one hundred twenty-two".