83885477 has 4 divisors (see below), whose sum is σ = 90338220. Its totient is φ = 77432736.

The previous prime is 83885471. The next prime is 83885479. The reversal of 83885477 is 77458838.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7392961 + 76492516 = 2719^2 + 8746^2 .

It is a cyclic number.

It is not a de Polignac number, because 83885477 - 2⁶ = 83885413 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 (83885471) 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, 3226352 + ... + 3226377.

It is an arithmetic number, because the mean of its divisors is an integer number (22584555).

Almost surely, 2^83885477 is an apocalyptic number.

It is an amenable number.

83885477 is a deficient number, since it is larger than the sum of its proper divisors (6452743).

83885477 is a wasteful number, since it uses less digits than its factorization.

83885477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452742.

The product of its digits is 1505280, while the sum is 50.

The square root of 83885477 is about 9158.9015171035. The cubic root of 83885477 is about 437.7527934418.

The spelling of 83885477 in words is "eighty-three million, eight hundred eighty-five thousand, four hundred seventy-seven".