61228822 has 4 divisors (see below), whose sum is σ = 91843236. Its totient is φ = 30614410.

The previous prime is 61228807. The next prime is 61228841. The reversal of 61228822 is 22882216.

61228822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 15307204 + ... + 15307207.

It is an arithmetic number, because the mean of its divisors is an integer number (22960809).

Almost surely, 2^61228822 is an apocalyptic number.

61228822 is a deficient number, since it is larger than the sum of its proper divisors (30614414).

61228822 is a wasteful number, since it uses less digits than its factorization.

61228822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30614413.

The product of its digits is 6144, while the sum is 31.

The square root of 61228822 is about 7824.8847914842. The cubic root of 61228822 is about 394.1413211512.

The spelling of 61228822 in words is "sixty-one million, two hundred twenty-eight thousand, eight hundred twenty-two".