1398471 has 12 divisors (see below), whose sum is σ = 1981992. Its totient is φ = 876928.

The previous prime is 1398451. The next prime is 1398473. The reversal of 1398471 is 1748931.

It is not a de Polignac number, because 1398471 - 2⁶ = 1398407 is a prime.

It is a super-3 number, since 3×1398471³ = 8205057886072923333, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (165166).

2^1398471 is an apocalyptic number.

1398471 is a deficient number, since it is larger than the sum of its proper divisors (583521).

1398471 is a wasteful number, since it uses less digits than its factorization.

1398471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1633 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 1398471 is about 1182.5696596818. The cubic root of 1398471 is about 111.8281537685.

The spelling of 1398471 in words is "one million, three hundred ninety-eight thousand, four hundred seventy-one".