9391428419 has 4 divisors (see below), whose sum is σ = 9391810344. Its totient is φ = 9391046496.

The previous prime is 9391428407. The next prime is 9391428457. The reversal of 9391428419 is 9148241939.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9391428419 is a prime.

It is a super-2 number, since 2×9391428419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9391428479) 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, 151337 + ... + 204170.

It is an arithmetic number, because the mean of its divisors is an integer number (2347952586).

Almost surely, 2^9391428419 is an apocalyptic number.

9391428419 is a deficient number, since it is larger than the sum of its proper divisors (381925).

9391428419 is a wasteful number, since it uses less digits than its factorization.

9391428419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381924.

The product of its digits is 559872, while the sum is 50.

The square root of 9391428419 is about 96909.3825127371. The cubic root of 9391428419 is about 2109.8126125300.

The spelling of 9391428419 in words is "nine billion, three hundred ninety-one million, four hundred twenty-eight thousand, four hundred nineteen".