1909062923 has 4 divisors (see below), whose sum is σ = 2021360760. Its totient is φ = 1796765088.

The previous prime is 1909062907. The next prime is 1909062937. The reversal of 1909062923 is 3292609091.

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

It is not a de Polignac number, because 1909062923 - 2⁴ = 1909062907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1909062973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56148893 + ... + 56148926.

It is an arithmetic number, because the mean of its divisors is an integer number (505340190).

Almost surely, 2^1909062923 is an apocalyptic number.

1909062923 is a deficient number, since it is larger than the sum of its proper divisors (112297837).

1909062923 is a wasteful number, since it uses less digits than its factorization.

1909062923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112297836.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 1909062923 is about 43692.8246168636. The cubic root of 1909062923 is about 1240.5285041178.

The spelling of 1909062923 in words is "one billion, nine hundred nine million, sixty-two thousand, nine hundred twenty-three".