1220836963 has 16 divisors (see below), whose sum is σ = 1369751040. Its totient is φ = 1081296000.

The previous prime is 1220836961. The next prime is 1220836973. The reversal of 1220836963 is 3696380221.

It is a cyclic number.

It is not a de Polignac number, because 1220836963 - 2¹ = 1220836961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220836961) 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, 36258 + ... + 61288.

It is an arithmetic number, because the mean of its divisors is an integer number (85609440).

Almost surely, 2^1220836963 is an apocalyptic number.

1220836963 is a deficient number, since it is larger than the sum of its proper divisors (148914077).

1220836963 is a wasteful number, since it uses less digits than its factorization.

1220836963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25218.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1220836963 is about 34940.4774294800. The cubic root of 1220836963 is about 1068.7740239781.

The spelling of 1220836963 in words is "one billion, two hundred twenty million, eight hundred thirty-six thousand, nine hundred sixty-three".