1423862891 has 8 divisors (see below), whose sum is σ = 1603411968. Its totient is φ = 1252665000.

The previous prime is 1423862887. The next prime is 1423862927. The reversal of 1423862891 is 1982683241.

It is a happy number.

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 1423862891 - 2² = 1423862887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423862191) 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, 2087435 + ... + 2088116.

It is an arithmetic number, because the mean of its divisors is an integer number (200426496).

Almost surely, 2^1423862891 is an apocalyptic number.

1423862891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1423862891 is a deficient number, since it is larger than the sum of its proper divisors (179549077).

1423862891 is a wasteful number, since it uses less digits than its factorization.

1423862891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175593.

The product of its digits is 165888, while the sum is 44.

The square root of 1423862891 is about 37734.1077938779. The cubic root of 1423862891 is about 1125.0091564028.

The spelling of 1423862891 in words is "one billion, four hundred twenty-three million, eight hundred sixty-two thousand, eight hundred ninety-one".