61072648 has 32 divisors (see below), whose sum is σ = 140938560. Its totient is φ = 24160320.

The previous prime is 61072643. The next prime is 61072663. The reversal of 61072648 is 84627016.

It is not an unprimeable number, because it can be changed into a prime (61072643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41218 + ... + 42673.

It is an arithmetic number, because the mean of its divisors is an integer number (4404330).

Almost surely, 2^61072648 is an apocalyptic number.

It is an amenable number.

61072648 is an abundant number, since it is smaller than the sum of its proper divisors (79865912).

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

61072648 is a wasteful number, since it uses less digits than its factorization.

61072648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83917 (or 83913 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 61072648 is about 7814.8991036353. The cubic root of 61072648 is about 393.8059287985.

The spelling of 61072648 in words is "sixty-one million, seventy-two thousand, six hundred forty-eight".