61216799 has 8 divisors (see below), whose sum is σ = 70432800. Its totient is φ = 52118496.

The previous prime is 61216787. The next prime is 61216811. The reversal of 61216799 is 99761216.

61216799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61216787) and next prime (61216811).

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 61216799 - 2¹² = 61212703 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 (61216739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28304 + ... + 30389.

It is an arithmetic number, because the mean of its divisors is an integer number (8804100).

Almost surely, 2^61216799 is an apocalyptic number.

61216799 is a deficient number, since it is larger than the sum of its proper divisors (9216001).

61216799 is a wasteful number, since it uses less digits than its factorization.

61216799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58849.

The product of its digits is 40824, while the sum is 41.

The square root of 61216799 is about 7824.1164996439. The cubic root of 61216799 is about 394.1155213663.

The spelling of 61216799 in words is "sixty-one million, two hundred sixteen thousand, seven hundred ninety-nine".