83457523 has 4 divisors (see below), whose sum is σ = 84066840. Its totient is φ = 82848208.

The previous prime is 83457511. The next prime is 83457601. The reversal of 83457523 is 32575438.

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-83457523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83457503) 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, 304453 + ... + 304726.

It is an arithmetic number, because the mean of its divisors is an integer number (21016710).

Almost surely, 2^83457523 is an apocalyptic number.

83457523 is a deficient number, since it is larger than the sum of its proper divisors (609317).

83457523 is a wasteful number, since it uses less digits than its factorization.

83457523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609316.

The product of its digits is 100800, while the sum is 37.

The square root of 83457523 is about 9135.5089075541. The cubic root of 83457523 is about 437.0071040044.

The spelling of 83457523 in words is "eighty-three million, four hundred fifty-seven thousand, five hundred twenty-three".