61279436 has 24 divisors (see below), whose sum is σ = 114522240. Its totient is φ = 28627200.

The previous prime is 61279417. The next prime is 61279447. The reversal of 61279436 is 63497216.

61279436 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 61279436.

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 7 ways as a sum of consecutive naturals, for example, 4925 + ... + 12116.

It is an arithmetic number, because the mean of its divisors is an integer number (4771760).

Almost surely, 2^61279436 is an apocalyptic number.

It is an amenable number.

61279436 is a deficient number, since it is larger than the sum of its proper divisors (53242804).

61279436 is a wasteful number, since it uses less digits than its factorization.

61279436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17105 (or 17103 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 61279436 is about 7828.1182924123. The cubic root of 61279436 is about 394.2498951518.

The spelling of 61279436 in words is "sixty-one million, two hundred seventy-nine thousand, four hundred thirty-six".