1234987965 has 32 divisors (see below), whose sum is σ = 2222659200. Its totient is φ = 658654416.

The previous prime is 1234987931. The next prime is 1234987981. The reversal of 1234987965 is 5697894321.

1234987965 is a `hidden beast` number, since 1 + 23 + 498 + 79 + 65 = 666.

It is not a de Polignac number, because 1234987965 - 2⁷ = 1234987837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45535 + ... + 67404.

It is an arithmetic number, because the mean of its divisors is an integer number (69458100).

Almost surely, 2^1234987965 is an apocalyptic number.

1234987965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1234987965 is a deficient number, since it is larger than the sum of its proper divisors (987671235).

1234987965 is an frugal number, since it uses more digits than its factorization.

1234987965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112965 (or 112947 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 1234987965 is about 35142.3955501044. The cubic root of 1234987965 is about 1072.8876392302.

The spelling of 1234987965 in words is "one billion, two hundred thirty-four million, nine hundred eighty-seven thousand, nine hundred sixty-five".