61963776 has 240 divisors, whose sum is σ = 218316384. Its totient is φ = 16515072.

The previous prime is 61963763. The next prime is 61963777. The reversal of 61963776 is 67736916.

61963776 is a `hidden beast` number, since 6 + 1 + 9 + 637 + 7 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61963777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548296 + ... + 548408.

Almost surely, 2^61963776 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 61963776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109158192).

61963776 is an abundant number, since it is smaller than the sum of its proper divisors (156352608).

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

61963776 is a wasteful number, since it uses less digits than its factorization.

61963776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 142 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 61963776 is about 7871.7073116320. The cubic root of 61963776 is about 395.7120649484.

The spelling of 61963776 in words is "sixty-one million, nine hundred sixty-three thousand, seven hundred seventy-six".