61284885 has 8 divisors (see below), whose sum is σ = 98055840. Its totient is φ = 32685264.

The previous prime is 61284829. The next prime is 61284889. The reversal of 61284885 is 58848216.

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

It is not a de Polignac number, because 61284885 - 2⁹ = 61284373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61284889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2042815 + ... + 2042844.

It is an arithmetic number, because the mean of its divisors is an integer number (12256980).

Almost surely, 2^61284885 is an apocalyptic number.

It is an amenable number.

61284885 is a deficient number, since it is larger than the sum of its proper divisors (36770955).

61284885 is a wasteful number, since it uses less digits than its factorization.

61284885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085667.

The product of its digits is 122880, while the sum is 42.

The square root of 61284885 is about 7828.4663248940. The cubic root of 61284885 is about 394.2615804421.

The spelling of 61284885 in words is "sixty-one million, two hundred eighty-four thousand, eight hundred eighty-five".