61885464 has 64 divisors (see below), whose sum is σ = 160151040. Its totient is φ = 19916160.

The previous prime is 61885459. The next prime is 61885487. The reversal of 61885464 is 46458816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93294 + ... + 93954.

It is an arithmetic number, because the mean of its divisors is an integer number (2502360).

Almost surely, 2^61885464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61885464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80075520).

61885464 is an abundant number, since it is smaller than the sum of its proper divisors (98265576).

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

61885464 is a wasteful number, since it uses less digits than its factorization.

61885464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 796 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 61885464 is about 7866.7314686596. The cubic root of 61885464 is about 395.5452897269.

The spelling of 61885464 in words is "sixty-one million, eight hundred eighty-five thousand, four hundred sixty-four".