84778341 has 4 divisors (see below), whose sum is σ = 113037792. Its totient is φ = 56518892.

The previous prime is 84778321. The next prime is 84778367. The reversal of 84778341 is 14387748.

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 84778341 - 2⁶ = 84778277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84778293 and 84778302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84778301) 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, 14129721 + ... + 14129726.

It is an arithmetic number, because the mean of its divisors is an integer number (28259448).

Almost surely, 2^84778341 is an apocalyptic number.

It is an amenable number.

84778341 is a deficient number, since it is larger than the sum of its proper divisors (28259451).

84778341 is a wasteful number, since it uses less digits than its factorization.

84778341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28259450.

The product of its digits is 150528, while the sum is 42.

The square root of 84778341 is about 9207.5154629248. The cubic root of 84778341 is about 439.3004396601.

The spelling of 84778341 in words is "eighty-four million, seven hundred seventy-eight thousand, three hundred forty-one".