61276930 has 64 divisors (see below), whose sum is σ = 131580288. Its totient is φ = 20252160.

The previous prime is 61276909. The next prime is 61276931. The reversal of 61276930 is 3967216.

It is not an unprimeable number, because it can be changed into a prime (61276931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104097 + ... + 104683.

It is an arithmetic number, because the mean of its divisors is an integer number (2055942).

Almost surely, 2^61276930 is an apocalyptic number.

61276930 is an abundant number, since it is smaller than the sum of its proper divisors (70303358).

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

61276930 is a wasteful number, since it uses less digits than its factorization.

61276930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 61276930 is about 7827.9582267664. The cubic root of 61276930 is about 394.2445208437.

The spelling of 61276930 in words is "sixty-one million, two hundred seventy-six thousand, nine hundred thirty".