84771403 has 4 divisors (see below), whose sum is σ = 87062560. Its totient is φ = 82480248.

The previous prime is 84771383. The next prime is 84771439. The reversal of 84771403 is 30417748.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84771403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84771493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145523 + ... + 1145596.

It is an arithmetic number, because the mean of its divisors is an integer number (21765640).

Almost surely, 2^84771403 is an apocalyptic number.

84771403 is a deficient number, since it is larger than the sum of its proper divisors (2291157).

84771403 is a wasteful number, since it uses less digits than its factorization.

84771403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291156.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 84771403 is about 9207.1386977714. The cubic root of 84771403 is about 439.2884556653.

The spelling of 84771403 in words is "eighty-four million, seven hundred seventy-one thousand, four hundred three".