61616028 has 12 divisors (see below), whose sum is σ = 143770760. Its totient is φ = 20538672.

The previous prime is 61616017. The next prime is 61616047. The reversal of 61616028 is 82061616.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 61615986 and 61616004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567323 + ... + 2567346.

Almost surely, 2^61616028 is an apocalyptic number.

It is an amenable number.

61616028 is an abundant number, since it is smaller than the sum of its proper divisors (82154732).

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

61616028 is a wasteful number, since it uses less digits than its factorization.

61616028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134676 (or 5134674 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 61616028 is about 7849.5877598763. The cubic root of 61616028 is about 394.9704149182.

The spelling of 61616028 in words is "sixty-one million, six hundred sixteen thousand, twenty-eight".