61283712 has 96 divisors (see below), whose sum is σ = 189420120. Its totient is φ = 17504256.

The previous prime is 61283701. The next prime is 61283737. The reversal of 61283712 is 21738216.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 61283712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17188 + ... + 20444.

Almost surely, 2^61283712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61283712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94710060).

61283712 is an abundant number, since it is smaller than the sum of its proper divisors (128136408).

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

61283712 is a wasteful number, since it uses less digits than its factorization.

61283712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288 (or 3269 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 61283712 is about 7828.3914056465. The cubic root of 61283712 is about 394.2590650215.

The spelling of 61283712 in words is "sixty-one million, two hundred eighty-three thousand, seven hundred twelve".