820965119 has 8 divisors (see below), whose sum is σ = 896569632. Its totient is φ = 747139680.

The previous prime is 820965113. The next prime is 820965143. The reversal of 820965119 is 911569028.

It is a happy number.

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 820965119 - 2¹² = 820961023 is a prime.

It is a super-2 number, since 2×820965119² = 1347967453229368322, 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 (820965113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443804 + ... + 445649.

It is an arithmetic number, because the mean of its divisors is an integer number (112071204).

Almost surely, 2^820965119 is an apocalyptic number.

820965119 is a deficient number, since it is larger than the sum of its proper divisors (75604513).

820965119 is a wasteful number, since it uses less digits than its factorization.

820965119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889537.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 820965119 is about 28652.4888796768. The cubic root of 820965119 is about 936.3572304920.

The spelling of 820965119 in words is "eight hundred twenty million, nine hundred sixty-five thousand, one hundred nineteen".