1260707987 has 8 divisors (see below), whose sum is σ = 1571791872. Its totient is φ = 982369800.

The previous prime is 1260707983. The next prime is 1260708019. The reversal of 1260707987 is 7897070621.

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 1260707987 - 2² = 1260707983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260707983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8186339 + ... + 8186492.

It is an arithmetic number, because the mean of its divisors is an integer number (196473984).

Almost surely, 2^1260707987 is an apocalyptic number.

1260707987 is a deficient number, since it is larger than the sum of its proper divisors (311083885).

1260707987 is a wasteful number, since it uses less digits than its factorization.

1260707987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16372849.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 1260707987 is about 35506.4499351878. The cubic root of 1260707987 is about 1080.2845577915.

The spelling of 1260707987 in words is "one billion, two hundred sixty million, seven hundred seven thousand, nine hundred eighty-seven".