966615799 has 4 divisors (see below), whose sum is σ = 966788064. Its totient is φ = 966443536.

The previous prime is 966615751. The next prime is 966615829. The reversal of 966615799 is 997516669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997516669 = 97 ⋅10283677.

It is a cyclic number.

It is not a de Polignac number, because 966615799 - 2¹⁵ = 966583031 is a prime.

It is a super-2 number, since 2×966615799² = 1868692205752816802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966612799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77422 + ... + 89035.

It is an arithmetic number, because the mean of its divisors is an integer number (241697016).

Almost surely, 2^966615799 is an apocalyptic number.

966615799 is a deficient number, since it is larger than the sum of its proper divisors (172265).

966615799 is a wasteful number, since it uses less digits than its factorization.

966615799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172264.

The product of its digits is 5511240, while the sum is 58.

The square root of 966615799 is about 31090.4454615884. The cubic root of 966615799 is about 988.7457500045.

The spelling of 966615799 in words is "nine hundred sixty-six million, six hundred fifteen thousand, seven hundred ninety-nine".