61712116 has 12 divisors (see below), whose sum is σ = 111720420. Its totient is φ = 29792000.

The previous prime is 61712113. The next prime is 61712117. The reversal of 61712116 is 61121716.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22524516 + 39187600 = 4746^2 + 6260^2 .

It is a super-2 number, since 2×61712116² = 7616770522394912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61712113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265885 + ... + 266116.

It is an arithmetic number, because the mean of its divisors is an integer number (9310035).

Almost surely, 2^61712116 is an apocalyptic number.

It is an amenable number.

61712116 is a deficient number, since it is larger than the sum of its proper divisors (50008304).

61712116 is a wasteful number, since it uses less digits than its factorization.

61712116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532034 (or 532032 counting only the distinct ones).

The product of its digits is 504, while the sum is 25.

The square root of 61712116 is about 7855.7059517271. The cubic root of 61712116 is about 395.1756223797.

The spelling of 61712116 in words is "sixty-one million, seven hundred twelve thousand, one hundred sixteen".