61988746 has 8 divisors (see below), whose sum is σ = 93020004. Its totient is φ = 30982080.

The previous prime is 61988669. The next prime is 61988779. The reversal of 61988746 is 64788916.

It can be written as a sum of positive squares in 2 ways, for example, as 60233121 + 1755625 = 7761^2 + 1325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61988746.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2706 + ... + 11458.

Almost surely, 2^61988746 is an apocalyptic number.

61988746 is a deficient number, since it is larger than the sum of its proper divisors (31031258).

61988746 is a wasteful number, since it uses less digits than its factorization.

61988746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296.

The product of its digits is 580608, while the sum is 49.

The square root of 61988746 is about 7873.2932118650. The cubic root of 61988746 is about 395.7652121468.

The spelling of 61988746 in words is "sixty-one million, nine hundred eighty-eight thousand, seven hundred forty-six".