61775796 has 24 divisors (see below), whose sum is σ = 144615744. Its totient is φ = 20524480.

The previous prime is 61775767. The next prime is 61775797. The reversal of 61775796 is 69757716.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61775797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4545 + ... + 12008.

It is an arithmetic number, because the mean of its divisors is an integer number (6025656).

Almost surely, 2^61775796 is an apocalyptic number.

It is an amenable number.

61775796 is an abundant number, since it is smaller than the sum of its proper divisors (82839948).

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

61775796 is a wasteful number, since it uses less digits than its factorization.

61775796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16871 (or 16869 counting only the distinct ones).

The product of its digits is 555660, while the sum is 48.

The square root of 61775796 is about 7859.7580115421. The cubic root of 61775796 is about 395.3115013311.

The spelling of 61775796 in words is "sixty-one million, seven hundred seventy-five thousand, seven hundred ninety-six".