61601799 has 16 divisors (see below), whose sum is σ = 94106880. Its totient is φ = 35112000.

The previous prime is 61601789. The next prime is 61601831. The reversal of 61601799 is 99710616.

It is not a de Polignac number, because 61601799 - 2⁴ = 61601783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61601779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5299 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (5881680).

Almost surely, 2^61601799 is an apocalyptic number.

61601799 is a deficient number, since it is larger than the sum of its proper divisors (32505081).

61601799 is a wasteful number, since it uses less digits than its factorization.

61601799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7430.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 61601799 is about 7848.6813542149. The cubic root of 61601799 is about 394.9400090488.

The spelling of 61601799 in words is "sixty-one million, six hundred one thousand, seven hundred ninety-nine".