61324672 has 32 divisors (see below), whose sum is σ = 123862680. Its totient is φ = 30237696.

The previous prime is 61324667. The next prime is 61324673. The reversal of 61324672 is 27642316.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×61324672³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61324673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063 + ... + 12625.

Almost surely, 2^61324672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61324672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61931340).

61324672 is an abundant number, since it is smaller than the sum of its proper divisors (62538008).

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

61324672 is an equidigital number, since it uses as much as digits as its factorization.

61324672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650 (or 6638 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 61324672 is about 7831.0070872143. The cubic root of 61324672 is about 394.3468820196.

Adding to 61324672 its reverse (27642316), we get a palindrome (88966988).

The spelling of 61324672 in words is "sixty-one million, three hundred twenty-four thousand, six hundred seventy-two".