421725039 has 4 divisors (see below), whose sum is σ = 562300056. Its totient is φ = 281150024.

The previous prime is 421725011. The next prime is 421725043. The reversal of 421725039 is 930527124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421725039 - 2¹³ = 421716847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421725089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70287504 + ... + 70287509.

It is an arithmetic number, because the mean of its divisors is an integer number (140575014).

Almost surely, 2^421725039 is an apocalyptic number.

421725039 is a deficient number, since it is larger than the sum of its proper divisors (140575017).

421725039 is a wasteful number, since it uses less digits than its factorization.

421725039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140575016.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 421725039 is about 20535.9450476476. The cubic root of 421725039 is about 749.9111236906.

The spelling of 421725039 in words is "four hundred twenty-one million, seven hundred twenty-five thousand, thirty-nine".