61606436 has 48 divisors (see below), whose sum is σ = 123197760. Its totient is φ = 26772480.

The previous prime is 61606421. The next prime is 61606439. The reversal of 61606436 is 63460616.

It is not an unprimeable number, because it can be changed into a prime (61606439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52391 + ... + 53553.

It is an arithmetic number, because the mean of its divisors is an integer number (2566620).

Almost surely, 2^61606436 is an apocalyptic number.

It is an amenable number.

61606436 is a deficient number, since it is larger than the sum of its proper divisors (61591324).

61606436 is a wasteful number, since it uses less digits than its factorization.

61606436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 61606436 is about 7848.9767485960. The cubic root of 61606436 is about 394.9499183420.

The spelling of 61606436 in words is "sixty-one million, six hundred six thousand, four hundred thirty-six".