83775387 has 8 divisors (see below), whose sum is σ = 113531920. Its totient is φ = 54934560.

The previous prime is 83775379. The next prime is 83775413. The reversal of 83775387 is 78357738.

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

It is not a de Polignac number, because 83775387 - 2³ = 83775379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83775347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228712 + ... + 229077.

It is an arithmetic number, because the mean of its divisors is an integer number (14191490).

Almost surely, 2^83775387 is an apocalyptic number.

83775387 is a deficient number, since it is larger than the sum of its proper divisors (29756533).

83775387 is a wasteful number, since it uses less digits than its factorization.

83775387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457853.

The product of its digits is 987840, while the sum is 48.

The square root of 83775387 is about 9152.8895437452. The cubic root of 83775387 is about 437.5612096128.

The spelling of 83775387 in words is "eighty-three million, seven hundred seventy-five thousand, three hundred eighty-seven".