84917669 has 24 divisors (see below), whose sum is σ = 96533208. Its totient is φ = 74419200.

The previous prime is 84917641. The next prime is 84917671. The reversal of 84917669 is 96671948.

It can be written as a sum of positive squares in 4 ways, for example, as 50225569 + 34692100 = 7087^2 + 5890^2 .

It is a de Polignac number, because none of the positive numbers 2^k-84917669 is a prime.

It is a super-2 number, since 2×84917669² = 14422021016787122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84917369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 619769 + ... + 619905.

It is an arithmetic number, because the mean of its divisors is an integer number (4022217).

Almost surely, 2^84917669 is an apocalyptic number.

It is an amenable number.

84917669 is a deficient number, since it is larger than the sum of its proper divisors (11615539).

84917669 is a wasteful number, since it uses less digits than its factorization.

84917669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 274 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 84917669 is about 9215.0783501824. The cubic root of 84917669 is about 439.5409623833.

The spelling of 84917669 in words is "eighty-four million, nine hundred seventeen thousand, six hundred sixty-nine".