61278896 has 20 divisors (see below), whose sum is σ = 135689232. Its totient is φ = 26262336.

The previous prime is 61278881. The next prime is 61278907. The reversal of 61278896 is 69887216.

It is a self number, because there is not a number n which added to its sum of digits gives 61278896.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273455 + ... + 273678.

Almost surely, 2^61278896 is an apocalyptic number.

It is an amenable number.

61278896 is an abundant number, since it is smaller than the sum of its proper divisors (74410336).

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

61278896 is a wasteful number, since it uses less digits than its factorization.

61278896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547148 (or 547142 counting only the distinct ones).

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

The square root of 61278896 is about 7828.0838012888. The cubic root of 61278896 is about 394.2487370930.

The spelling of 61278896 in words is "sixty-one million, two hundred seventy-eight thousand, eight hundred ninety-six".