8394427523 has 4 divisors (see below), whose sum is σ = 8495565288. Its totient is φ = 8293289760.

The previous prime is 8394427471. The next prime is 8394427537. The reversal of 8394427523 is 3257244938.

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

It is a cyclic number.

It is not a de Polignac number, because 8394427523 - 2¹⁴ = 8394411139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8394427543) 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, 50568758 + ... + 50568923.

It is an arithmetic number, because the mean of its divisors is an integer number (2123891322).

Almost surely, 2^8394427523 is an apocalyptic number.

8394427523 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

8394427523 is a deficient number, since it is larger than the sum of its proper divisors (101137765).

8394427523 is a wasteful number, since it uses less digits than its factorization.

8394427523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101137764.

The product of its digits is 1451520, while the sum is 47.

The square root of 8394427523 is about 91621.1085012619. The cubic root of 8394427523 is about 2032.3431026591.

The spelling of 8394427523 in words is "eight billion, three hundred ninety-four million, four hundred twenty-seven thousand, five hundred twenty-three".