61770404 has 12 divisors (see below), whose sum is σ = 109930800. Its totient is φ = 30361608.

The previous prime is 61770391. The next prime is 61770407. The reversal of 61770404 is 40407716.

It is a happy number.

61770404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61770407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130634 + ... + 131105.

It is an arithmetic number, because the mean of its divisors is an integer number (9160900).

Almost surely, 2^61770404 is an apocalyptic number.

It is an amenable number.

61770404 is a deficient number, since it is larger than the sum of its proper divisors (48160396).

61770404 is a wasteful number, since it uses less digits than its factorization.

61770404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261802 (or 261800 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 61770404 is about 7859.4149909519. The cubic root of 61770404 is about 395.2999996224.

The spelling of 61770404 in words is "sixty-one million, seven hundred seventy thousand, four hundred four".