84691077 has 4 divisors (see below), whose sum is σ = 112921440. Its totient is φ = 56460716.

The previous prime is 84691063. The next prime is 84691099. The reversal of 84691077 is 77019648.

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 84691077 - 2¹¹ = 84689029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84691007) 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, 14115177 + ... + 14115182.

It is an arithmetic number, because the mean of its divisors is an integer number (28230360).

Almost surely, 2^84691077 is an apocalyptic number.

It is an amenable number.

84691077 is a deficient number, since it is larger than the sum of its proper divisors (28230363).

84691077 is a wasteful number, since it uses less digits than its factorization.

84691077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28230362.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 84691077 is about 9202.7755052484. The cubic root of 84691077 is about 439.1496610781.

The spelling of 84691077 in words is "eighty-four million, six hundred ninety-one thousand, seventy-seven".