1287098 has 8 divisors (see below), whose sum is σ = 2032320. Its totient is φ = 609660.

The previous prime is 1287071. The next prime is 1287101. The reversal of 1287098 is 8907821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16898 + ... + 16973.

It is an arithmetic number, because the mean of its divisors is an integer number (254040).

2^1287098 is an apocalyptic number.

1287098 is a deficient number, since it is larger than the sum of its proper divisors (745222).

1287098 is a wasteful number, since it uses less digits than its factorization.

1287098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33892.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1287098 is about 1134.5034155964. The cubic root of 1287098 is about 108.7770320787. Note that the first 3 decimals are identical.

The spelling of 1287098 in words is "one million, two hundred eighty-seven thousand, ninety-eight".