1234987963 has 4 divisors (see below), whose sum is σ = 1347259608. Its totient is φ = 1122716320.

The previous prime is 1234987931. The next prime is 1234987981. The reversal of 1234987963 is 3697894321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1234987963 - 2⁵ = 1234987931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1234987963.

It is not an unprimeable number, because it can be changed into a prime (1234987913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56135806 + ... + 56135827.

It is an arithmetic number, because the mean of its divisors is an integer number (336814902).

Almost surely, 2^1234987963 is an apocalyptic number.

1234987963 is a deficient number, since it is larger than the sum of its proper divisors (112271645).

1234987963 is a wasteful number, since it uses less digits than its factorization.

1234987963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112271644.

The product of its digits is 1959552, while the sum is 52.

The square root of 1234987963 is about 35142.3955216488. The cubic root of 1234987963 is about 1072.8876386510.

The spelling of 1234987963 in words is "one billion, two hundred thirty-four million, nine hundred eighty-seven thousand, nine hundred sixty-three".