61392 has 20 divisors (see below), whose sum is σ = 158720. Its totient is φ = 20448.

The previous prime is 61381. The next prime is 61403. The reversal of 61392 is 29316.

It is an interprime number because it is at equal distance from previous prime (61381) and next prime (61403).

It is a congruent number.

It is an unprimeable number.

61392 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592 + ... + 687.

It is an arithmetic number, because the mean of its divisors is an integer number (7936).

2⁶¹³⁹² is an apocalyptic number.

It is an amenable number.

61392 is an abundant number, since it is smaller than the sum of its proper divisors (97328).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79360).

61392 is a wasteful number, since it uses less digits than its factorization.

61392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1284 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

The square root of 61392 is about 247.7740906552. The cubic root of 61392 is about 39.4491146285.

Adding to 61392 its product of digits (324), we get a palindrome (61716).

The spelling of 61392 in words is "sixty-one thousand, three hundred ninety-two".