61788871 has 8 divisors (see below), whose sum is σ = 63464400. Its totient is φ = 60134400.

The previous prime is 61788869. The next prime is 61788889. The reversal of 61788871 is 17888716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61788871 - 2¹ = 61788869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61788851) 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, 775 + ... + 11143.

It is an arithmetic number, because the mean of its divisors is an integer number (7933050).

Almost surely, 2^61788871 is an apocalyptic number.

61788871 is a deficient number, since it is larger than the sum of its proper divisors (1675529).

61788871 is a wasteful number, since it uses less digits than its factorization.

61788871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529.

The product of its digits is 150528, while the sum is 46.

The square root of 61788871 is about 7860.5897361458. The cubic root of 61788871 is about 395.3393889160.

The spelling of 61788871 in words is "sixty-one million, seven hundred eighty-eight thousand, eight hundred seventy-one".