1423861 has 8 divisors (see below), whose sum is σ = 1534464.
Its totient is φ = 1317360.
The previous prime is 1423853. The next prime is 1423897. The reversal of 1423861 is 1683241.
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 1423861 - 23 = 1423853 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1423061) 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, 286 + ... + 1711.
It is an arithmetic number, because the mean of its divisors is an integer number (191808).
21423861 is an apocalyptic number.
It is an amenable number.
1423861 is a deficient number, since it is larger than the sum of its proper divisors (110603).
1423861 is a wasteful number, since it uses less digits than its factorization.
1423861 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2051.
The product of its digits is 1152, while the sum is 25.
The square root of 1423861 is about 1193.2564686604.
The cubic root of 1423861 is about 112.5008658370.
The spelling of 1423861 in words is "one million, four hundred twenty-three thousand, eight hundred sixty-one".