61710216 has 32 divisors (see below), whose sum is σ = 156582240. Its totient is φ = 20262528.

The previous prime is 61710199. The next prime is 61710269. The reversal of 61710216 is 61201716.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17581 + ... + 20796.

It is an arithmetic number, because the mean of its divisors is an integer number (4893195).

Almost surely, 2^61710216 is an apocalyptic number.

It is an amenable number.

61710216 is an abundant number, since it is smaller than the sum of its proper divisors (94872024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61710216 is a wasteful number, since it uses less digits than its factorization.

61710216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38453 (or 38449 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 61710216 is about 7855.5850195896. The cubic root of 61710216 is about 395.1715667666.

The spelling of 61710216 in words is "sixty-one million, seven hundred ten thousand, two hundred sixteen".