61885947 has 8 divisors (see below), whose sum is σ = 82638144. Its totient is φ = 41195528.

The previous prime is 61885937. The next prime is 61885961. The reversal of 61885947 is 74958816.

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 61885947 - 2⁴ = 61885931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61885896 and 61885905.

It is not an unprimeable number, because it can be changed into a prime (61885937) 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, 13053 + ... + 17150.

It is an arithmetic number, because the mean of its divisors is an integer number (10329768).

Almost surely, 2^61885947 is an apocalyptic number.

61885947 is a deficient number, since it is larger than the sum of its proper divisors (20752197).

61885947 is a wasteful number, since it uses less digits than its factorization.

61885947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30889.

The product of its digits is 483840, while the sum is 48.

The square root of 61885947 is about 7866.7621674994. The cubic root of 61885947 is about 395.5463187670.

The spelling of 61885947 in words is "sixty-one million, eight hundred eighty-five thousand, nine hundred forty-seven".