1420871 has 8 divisors (see below), whose sum is σ = 1495680. Its totient is φ = 1347192.

The previous prime is 1420847. The next prime is 1420879. The reversal of 1420871 is 1780241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420871 - 2⁶ = 1420807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3560 + ... + 3938.

It is an arithmetic number, because the mean of its divisors is an integer number (186960).

2^1420871 is an apocalyptic number.

1420871 is a deficient number, since it is larger than the sum of its proper divisors (74809).

1420871 is a wasteful number, since it uses less digits than its factorization.

1420871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1420871 is about 1192.0029362380. The cubic root of 1420871 is about 112.4220628921.

The spelling of 1420871 in words is "one million, four hundred twenty thousand, eight hundred seventy-one".