1287701 has 4 divisors (see below), whose sum is σ = 1343712. Its totient is φ = 1231692.

The previous prime is 1287697. The next prime is 1287707. The reversal of 1287701 is 1077821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1287701 - 2² = 1287697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287707) 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, 27971 + ... + 28016.

It is an arithmetic number, because the mean of its divisors is an integer number (335928).

2^1287701 is an apocalyptic number.

It is an amenable number.

1287701 is a deficient number, since it is larger than the sum of its proper divisors (56011).

1287701 is an equidigital number, since it uses as much as digits as its factorization.

1287701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56010.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 1287701 is about 1134.7691395169. The cubic root of 1287701 is about 108.7940166206.

The spelling of 1287701 in words is "one million, two hundred eighty-seven thousand, seven hundred one".