84783713477 has 4 divisors (see below), whose sum is σ = 85856925120. Its totient is φ = 83710501836.

The previous prime is 84783713461. The next prime is 84783713489. The reversal of 84783713477 is 77431738748.

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 not a de Polignac number, because 84783713477 - 2⁴ = 84783713461 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 (84783710477) 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, 536605703 + ... + 536605860.

It is an arithmetic number, because the mean of its divisors is an integer number (21464231280).

Almost surely, 2^84783713477 is an apocalyptic number.

It is an amenable number.

84783713477 is a deficient number, since it is larger than the sum of its proper divisors (1073211643).

84783713477 is a wasteful number, since it uses less digits than its factorization.

84783713477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073211642.

The product of its digits is 22127616, while the sum is 59.

It can be divided in two parts, 8478371 and 3477, that added together give a palindrome (8481848).

The spelling of 84783713477 in words is "eighty-four billion, seven hundred eighty-three million, seven hundred thirteen thousand, four hundred seventy-seven".