84663730 has 16 divisors (see below), whose sum is σ = 154894104. Its totient is φ = 33310080.

The previous prime is 84663703. The next prime is 84663743. The reversal of 84663730 is 3736648.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46335249 + 38328481 = 6807^2 + 6191^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84663730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68787 + ... + 70006.

Almost surely, 2^84663730 is an apocalyptic number.

84663730 is a deficient number, since it is larger than the sum of its proper divisors (70230374).

84663730 is a wasteful number, since it uses less digits than its factorization.

84663730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138861.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 84663730 is about 9201.2895835312. The cubic root of 84663730 is about 439.1023884135.

The spelling of 84663730 in words is "eighty-four million, six hundred sixty-three thousand, seven hundred thirty".