61648828 has 12 divisors (see below), whose sum is σ = 107943192. Its totient is φ = 30807920.

The previous prime is 61648823. The next prime is 61648837. The reversal of 61648828 is 82884616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61648823) 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 3 ways as a sum of consecutive naturals, for example, 8751 + ... + 14137.

It is an arithmetic number, because the mean of its divisors is an integer number (8995266).

Almost surely, 2^61648828 is an apocalyptic number.

It is an amenable number.

61648828 is a deficient number, since it is larger than the sum of its proper divisors (46294364).

61648828 is a wasteful number, since it uses less digits than its factorization.

61648828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252 (or 8250 counting only the distinct ones).

The product of its digits is 147456, while the sum is 43.

The square root of 61648828 is about 7851.6767635964. The cubic root of 61648828 is about 395.0404872242.

The spelling of 61648828 in words is "sixty-one million, six hundred forty-eight thousand, eight hundred twenty-eight".