83240413 has 4 divisors (see below), whose sum is σ = 83875968. Its totient is φ = 82604860.

The previous prime is 83240407. The next prime is 83240429. The reversal of 83240413 is 31404238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83240413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83246413) 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, 317581 + ... + 317842.

It is an arithmetic number, because the mean of its divisors is an integer number (20968992).

Almost surely, 2^83240413 is an apocalyptic number.

It is an amenable number.

83240413 is a deficient number, since it is larger than the sum of its proper divisors (635555).

83240413 is a wasteful number, since it uses less digits than its factorization.

83240413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635554.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 83240413 is about 9123.6184159576. The cubic root of 83240413 is about 436.6278252135.

The spelling of 83240413 in words is "eighty-three million, two hundred forty thousand, four hundred thirteen".