84742030 has 16 divisors (see below), whose sum is σ = 154047744. Its totient is φ = 33560800.

The previous prime is 84742027. The next prime is 84742037. The reversal of 84742030 is 3024748.

It is a self number, because there is not a number n which added to its sum of digits gives 84742030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84742037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40942 + ... + 42961.

It is an arithmetic number, because the mean of its divisors is an integer number (9627984).

Almost surely, 2^84742030 is an apocalyptic number.

84742030 is a deficient number, since it is larger than the sum of its proper divisors (69305714).

84742030 is a wasteful number, since it uses less digits than its factorization.

84742030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84011.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 84742030 is about 9205.5434386026. The cubic root of 84742030 is about 439.2377124903.

Adding to 84742030 its reverse (3024748), we get a palindrome (87766778).

The spelling of 84742030 in words is "eighty-four million, seven hundred forty-two thousand, thirty".