61908428 has 12 divisors (see below), whose sum is σ = 108440472. Its totient is φ = 30925440.

The previous prime is 61908389. The next prime is 61908449. The reversal of 61908428 is 82480916.

61908428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61908391 and 61908400.

It is an unprimeable number.

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, 1925 + ... + 11292.

It is an arithmetic number, because the mean of its divisors is an integer number (9036706).

Almost surely, 2^61908428 is an apocalyptic number.

It is an amenable number.

61908428 is a deficient number, since it is larger than the sum of its proper divisors (46532044).

61908428 is a wasteful number, since it uses less digits than its factorization.

61908428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14392 (or 14390 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 61908428 is about 7868.1908975317. The cubic root of 61908428 is about 395.5942090161.

The spelling of 61908428 in words is "sixty-one million, nine hundred eight thousand, four hundred twenty-eight".