1267798 has 16 divisors (see below), whose sum is σ = 2192544. Its totient is φ = 538560.

The previous prime is 1267789. The next prime is 1267823. The reversal of 1267798 is 8977621.

It is a self number, because there is not a number n which added to its sum of digits gives 1267798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (137034).

2^1267798 is an apocalyptic number.

1267798 is a deficient number, since it is larger than the sum of its proper divisors (924746).

1267798 is a wasteful number, since it uses less digits than its factorization.

1267798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its digits is 42336, while the sum is 40.

The square root of 1267798 is about 1125.9653635881. The cubic root of 1267798 is about 108.2305887141.

The spelling of 1267798 in words is "one million, two hundred sixty-seven thousand, seven hundred ninety-eight".