1420471 has 4 divisors (see below), whose sum is σ = 1529752. Its totient is φ = 1311192.

The previous prime is 1420429. The next prime is 1420483. The reversal of 1420471 is 1740241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420471 - 2¹¹ = 1418423 is a prime.

It is a super-3 number, since 3×1420471³ = 8598414355041441333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54621 + ... + 54646.

It is an arithmetic number, because the mean of its divisors is an integer number (382438).

2^1420471 is an apocalyptic number.

1420471 is a deficient number, since it is larger than the sum of its proper divisors (109281).

1420471 is a wasteful number, since it uses less digits than its factorization.

1420471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109280.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1420471 is about 1191.8351396061. The cubic root of 1420471 is about 112.4115123106.

It can be divided in two parts, 1420 and 471, that added together give a triangular number (1891 = T₆₁).

The spelling of 1420471 in words is "one million, four hundred twenty thousand, four hundred seventy-one".