61716830 has 16 divisors (see below), whose sum is σ = 126960480. Its totient is φ = 21160032.

The previous prime is 61716829. The next prime is 61716833. The reversal of 61716830 is 3861716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61716833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440765 + ... + 440904.

It is an arithmetic number, because the mean of its divisors is an integer number (7935030).

Almost surely, 2^61716830 is an apocalyptic number.

61716830 is an abundant number, since it is smaller than the sum of its proper divisors (65243650).

61716830 is a wasteful number, since it uses less digits than its factorization.

61716830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881683.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 61716830 is about 7856.0059826861. The cubic root of 61716830 is about 395.1856842096.

The spelling of 61716830 in words is "sixty-one million, seven hundred sixteen thousand, eight hundred thirty".