84709974 has 16 divisors (see below), whose sum is σ = 171004608. Its totient is φ = 27972552.

The previous prime is 84709973. The next prime is 84710069. The reversal of 84709974 is 47990748.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84709973) 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, 65332 + ... + 66615.

It is an arithmetic number, because the mean of its divisors is an integer number (10687788).

Almost surely, 2^84709974 is an apocalyptic number.

84709974 is an abundant number, since it is smaller than the sum of its proper divisors (86294634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84709974 is a wasteful number, since it uses less digits than its factorization.

84709974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132059.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 84709974 is about 9203.8021491121. The cubic root of 84709974 is about 439.1823209296.

The spelling of 84709974 in words is "eighty-four million, seven hundred nine thousand, nine hundred seventy-four".