61722846 has 96 divisors (see below), whose sum is σ = 148599360. Its totient is φ = 18450432.

The previous prime is 61722833. The next prime is 61722863. The reversal of 61722846 is 64822716.

It is a self number, because there is not a number n which added to its sum of digits gives 61722846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 636270 + ... + 636366.

It is an arithmetic number, because the mean of its divisors is an integer number (1547910).

Almost surely, 2^61722846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61722846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74299680).

61722846 is an abundant number, since it is smaller than the sum of its proper divisors (86876514).

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

61722846 is a wasteful number, since it uses less digits than its factorization.

61722846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 61722846 is about 7856.3888651212. The cubic root of 61722846 is about 395.1985243584.

The spelling of 61722846 in words is "sixty-one million, seven hundred twenty-two thousand, eight hundred forty-six".