61393104 has 90 divisors (see below), whose sum is σ = 181487826. Its totient is φ = 19370880.

The previous prime is 61393093. The next prime is 61393181. The reversal of 61393104 is 40139316.

It can be written as a sum of positive squares in only one way, i.e., 60093504 + 1299600 = 7752^2 + 1140^2 .

It is a super-2 number, since 2×61393104² = 7538226437509632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 51394 + ... + 52574.

Almost surely, 2^61393104 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 61393104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90743913).

61393104 is an abundant number, since it is smaller than the sum of its proper divisors (120094722).

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

61393104 is a wasteful number, since it uses less digits than its factorization.

61393104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 61393104 is about 7835.3751665124. The cubic root of 61393104 is about 394.4935109555.

The spelling of 61393104 in words is "sixty-one million, three hundred ninety-three thousand, one hundred four".