1298870 has 8 divisors (see below), whose sum is σ = 2337984. Its totient is φ = 519544.

The previous prime is 1298863. The next prime is 1298887. The reversal of 1298870 is 788921.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1298870.

It is a congruent number.

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, 64934 + ... + 64953.

It is an arithmetic number, because the mean of its divisors is an integer number (292248).

2^1298870 is an apocalyptic number.

1298870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1298870 is a deficient number, since it is larger than the sum of its proper divisors (1039114).

1298870 is a wasteful number, since it uses less digits than its factorization.

1298870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129894.

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

The square root of 1298870 is about 1139.6797795872. The cubic root of 1298870 is about 109.1076567301.

The spelling of 1298870 in words is "one million, two hundred ninety-eight thousand, eight hundred seventy".