420984147 has 8 divisors (see below), whose sum is σ = 574366144. Its totient is φ = 274129128.

The previous prime is 420984133. The next prime is 420984169. The reversal of 420984147 is 741489024.

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

It is not a de Polignac number, because 420984147 - 2⁴ = 420984131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420904147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631593 + ... + 1631850.

It is an arithmetic number, because the mean of its divisors is an integer number (71795768).

Almost surely, 2^420984147 is an apocalyptic number.

420984147 is a deficient number, since it is larger than the sum of its proper divisors (153381997).

420984147 is a wasteful number, since it uses less digits than its factorization.

420984147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263489.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 420984147 is about 20517.8982110742. The cubic root of 420984147 is about 749.4717150852.

The spelling of 420984147 in words is "four hundred twenty million, nine hundred eighty-four thousand, one hundred forty-seven".