84650709 has 32 divisors (see below), whose sum is σ = 136209024. Its totient is φ = 46068480.

The previous prime is 84650669. The next prime is 84650723. The reversal of 84650709 is 90705648.

It is not a de Polignac number, because 84650709 - 2⁹ = 84650197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84650509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13207 + ... + 18539.

It is an arithmetic number, because the mean of its divisors is an integer number (4256532).

Almost surely, 2^84650709 is an apocalyptic number.

It is an amenable number.

84650709 is a deficient number, since it is larger than the sum of its proper divisors (51558315).

84650709 is a wasteful number, since it uses less digits than its factorization.

84650709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 84650709 is about 9200.5819924611. The cubic root of 84650709 is about 439.0798764305.

The spelling of 84650709 in words is "eighty-four million, six hundred fifty thousand, seven hundred nine".