1071398 has 8 divisors (see below), whose sum is σ = 1627680. Its totient is φ = 528840.

The previous prime is 1071379. The next prime is 1071401. The reversal of 1071398 is 8931701.

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

It is a super-2 number, since 2×1071398² = 2295787348808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1071398.

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, 3233 + ... + 3548.

It is an arithmetic number, because the mean of its divisors is an integer number (203460).

2^1071398 is an apocalyptic number.

1071398 is a deficient number, since it is larger than the sum of its proper divisors (556282).

1071398 is an equidigital number, since it uses as much as digits as its factorization.

1071398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1071398 is about 1035.0835715052. The cubic root of 1071398 is about 102.3254375623.

The spelling of 1071398 in words is "one million, seventy-one thousand, three hundred ninety-eight".