84970679 has 16 divisors (see below), whose sum is σ = 91632000. Its totient is φ = 78550560.

The previous prime is 84970651. The next prime is 84970729. The reversal of 84970679 is 97607948.

It is a happy number.

It is not a de Polignac number, because 84970679 - 2¹⁶ = 84905143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84975679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256544 + ... + 256874.

It is an arithmetic number, because the mean of its divisors is an integer number (5727000).

Almost surely, 2^84970679 is an apocalyptic number.

84970679 is a deficient number, since it is larger than the sum of its proper divisors (6661321).

84970679 is a wasteful number, since it uses less digits than its factorization.

84970679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 84970679 is about 9217.9541656487. The cubic root of 84970679 is about 439.6324047572.

The spelling of 84970679 in words is "eighty-four million, nine hundred seventy thousand, six hundred seventy-nine".