61358976 has 144 divisors (see below), whose sum is σ = 205583040. Its totient is φ = 17515008.

The previous prime is 61358929. The next prime is 61359029. The reversal of 61358976 is 67985316.

It is a happy number.

61358976 is a `hidden beast` number, since 61 + 3 + 589 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55905 + ... + 56991.

It is an arithmetic number, because the mean of its divisors is an integer number (1427660).

Almost surely, 2^61358976 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 61358976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102791520).

61358976 is an abundant number, since it is smaller than the sum of its proper divisors (144224064).

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

61358976 is a wasteful number, since it uses less digits than its factorization.

61358976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121 (or 1099 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 61358976 is about 7833.1970484598. The cubic root of 61358976 is about 394.4203986723.

The spelling of 61358976 in words is "sixty-one million, three hundred fifty-eight thousand, nine hundred seventy-six".