84406730 has 8 divisors (see below), whose sum is σ = 151932132. Its totient is φ = 33762688.

The previous prime is 84406727. The next prime is 84406753. The reversal of 84406730 is 3760448.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83302129 + 1104601 = 9127^2 + 1051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4220327 + ... + 4220346.

Almost surely, 2^84406730 is an apocalyptic number.

84406730 is a deficient number, since it is larger than the sum of its proper divisors (67525402).

84406730 is a wasteful number, since it uses less digits than its factorization.

84406730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8440680.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 84406730 is about 9187.3135355228. The cubic root of 84406730 is about 438.6576340387.

The spelling of 84406730 in words is "eighty-four million, four hundred six thousand, seven hundred thirty".