61528705 has 8 divisors (see below), whose sum is σ = 84382272. Its totient is φ = 42191088.

The previous prime is 61528697. The next prime is 61528711. The reversal of 61528705 is 50782516.

61528705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61528705 - 2³ = 61528697 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 878947 + ... + 879016.

It is an arithmetic number, because the mean of its divisors is an integer number (10547784).

Almost surely, 2^61528705 is an apocalyptic number.

It is an amenable number.

61528705 is a deficient number, since it is larger than the sum of its proper divisors (22853567).

61528705 is a wasteful number, since it uses less digits than its factorization.

61528705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757975.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 61528705 is about 7844.0235211274. The cubic root of 61528705 is about 394.7837410460.

The spelling of 61528705 in words is "sixty-one million, five hundred twenty-eight thousand, seven hundred five".