421415539 has 8 divisors (see below), whose sum is σ = 426377952. Its totient is φ = 416470080.

The previous prime is 421415521. The next prime is 421415543. The reversal of 421415539 is 935514124.

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

It is a cyclic number.

It is not a de Polignac number, because 421415539 - 2⁷ = 421415411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421415549) 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, 49737 + ... + 57589.

It is an arithmetic number, because the mean of its divisors is an integer number (53297244).

Almost surely, 2^421415539 is an apocalyptic number.

421415539 is a deficient number, since it is larger than the sum of its proper divisors (4962413).

421415539 is a wasteful number, since it uses less digits than its factorization.

421415539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8477.

The product of its digits is 21600, while the sum is 34.

The square root of 421415539 is about 20528.4080970737. The cubic root of 421415539 is about 749.7276279114.

The spelling of 421415539 in words is "four hundred twenty-one million, four hundred fifteen thousand, five hundred thirty-nine".