83906493 has 8 divisors (see below), whose sum is σ = 122045856. Its totient is φ = 50852400.

The previous prime is 83906479. The next prime is 83906503. The reversal of 83906493 is 39460938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83906493 - 2¹³ = 83898301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83906423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271278 + ... + 1271343.

It is an arithmetic number, because the mean of its divisors is an integer number (15255732).

Almost surely, 2^83906493 is an apocalyptic number.

It is an amenable number.

83906493 is a deficient number, since it is larger than the sum of its proper divisors (38139363).

83906493 is a wasteful number, since it uses less digits than its factorization.

83906493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542635.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 83906493 is about 9160.0487444118. The cubic root of 83906493 is about 437.7893474233.

The spelling of 83906493 in words is "eighty-three million, nine hundred six thousand, four hundred ninety-three".