61159928 has 8 divisors (see below), whose sum is σ = 114674880. Its totient is φ = 30579960.

The previous prime is 61159907. The next prime is 61159991. The reversal of 61159928 is 82995116.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3822488 + ... + 3822503.

It is an arithmetic number, because the mean of its divisors is an integer number (14334360).

Almost surely, 2^61159928 is an apocalyptic number.

It is an amenable number.

61159928 is a deficient number, since it is larger than the sum of its proper divisors (53514952).

61159928 is a wasteful number, since it uses less digits than its factorization.

61159928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644997 (or 7644993 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 61159928 is about 7820.4813151110. The cubic root of 61159928 is about 393.9934378389.

The spelling of 61159928 in words is "sixty-one million, one hundred fifty-nine thousand, nine hundred twenty-eight".