84928077 has 18 divisors (see below), whose sum is σ = 132838602. Its totient is φ = 52262496.

The previous prime is 84928069. The next prime is 84928087. The reversal of 84928077 is 77082948.

It can be written as a sum of positive squares in 3 ways, for example, as 820836 + 84107241 = 906^2 + 9171^2 .

It is not a de Polignac number, because 84928077 - 2³ = 84928069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84928087) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26398 + ... + 29439.

Almost surely, 2^84928077 is an apocalyptic number.

It is an amenable number.

84928077 is a deficient number, since it is larger than the sum of its proper divisors (47910525).

84928077 is a wasteful number, since it uses less digits than its factorization.

84928077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55869 (or 55853 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 84928077 is about 9215.6430594940. The cubic root of 84928077 is about 439.5589192094.

The spelling of 84928077 in words is "eighty-four million, nine hundred twenty-eight thousand, seventy-seven".