61716895 has 8 divisors (see below), whose sum is σ = 74343456. Its totient is φ = 49184736.

The previous prime is 61716887. The next prime is 61716899. The reversal of 61716895 is 59861716.

It is a happy number.

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 61716895 - 2³ = 61716887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61716899) 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, 22152 + ... + 24781.

It is an arithmetic number, because the mean of its divisors is an integer number (9292932).

Almost surely, 2^61716895 is an apocalyptic number.

61716895 is a deficient number, since it is larger than the sum of its proper divisors (12626561).

61716895 is a wasteful number, since it uses less digits than its factorization.

61716895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47201.

The product of its digits is 90720, while the sum is 43.

The square root of 61716895 is about 7856.0101196473. The cubic root of 61716895 is about 395.1858229458.

The spelling of 61716895 in words is "sixty-one million, seven hundred sixteen thousand, eight hundred ninety-five".