84576970 has 16 divisors (see below), whose sum is σ = 155478528. Its totient is φ = 33110800.

The previous prime is 84576953. The next prime is 84576971. The reversal of 84576970 is 7967548.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 84576970.

It is not an unprimeable number, because it can be changed into a prime (84576971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89506 + ... + 90445.

It is an arithmetic number, because the mean of its divisors is an integer number (9717408).

Almost surely, 2^84576970 is an apocalyptic number.

84576970 is a deficient number, since it is larger than the sum of its proper divisors (70901558).

84576970 is a wasteful number, since it uses less digits than its factorization.

84576970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180005.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 84576970 is about 9196.5738185479. The cubic root of 84576970 is about 438.9523456349.

It can be divided in two parts, 845 and 76970, that added together give a triangular number (77815 = T₃₉₄).

The spelling of 84576970 in words is "eighty-four million, five hundred seventy-six thousand, nine hundred seventy".