84670669 has 8 divisors (see below), whose sum is σ = 89217440. Its totient is φ = 80132976.

The previous prime is 84670667. The next prime is 84670673. The reversal of 84670669 is 96607648.

84670669 = 2102² + 2103² + ... + 2120².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84670669 - 2¹ = 84670667 is a prime.

It is a super-2 number, since 2×84670669² = 14338244377815122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84670661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26074 + ... + 29140.

It is an arithmetic number, because the mean of its divisors is an integer number (11152180).

Almost surely, 2^84670669 is an apocalyptic number.

It is an amenable number.

84670669 is a deficient number, since it is larger than the sum of its proper divisors (4546771).

84670669 is a wasteful number, since it uses less digits than its factorization.

84670669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 84670669 is about 9201.6666425165. Note that the first 4 decimals coincide. The cubic root of 84670669 is about 439.1143842951.

The spelling of 84670669 in words is "eighty-four million, six hundred seventy thousand, six hundred sixty-nine".