61898276 has 72 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 25945920.

The previous prime is 61898269. The next prime is 61898321. The reversal of 61898276 is 67289816.

61898276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61898276.

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 23 ways as a sum of consecutive naturals, for example, 487325 + ... + 487451.

It is an arithmetic number, because the mean of its divisors is an integer number (1787520).

Almost surely, 2^61898276 is an apocalyptic number.

It is an amenable number.

61898276 is an abundant number, since it is smaller than the sum of its proper divisors (66803164).

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

61898276 is a wasteful number, since it uses less digits than its factorization.

61898276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 212 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 61898276 is about 7867.5457418435. The cubic root of 61898276 is about 395.5725841094.

The spelling of 61898276 in words is "sixty-one million, eight hundred ninety-eight thousand, two hundred seventy-six".