421386127 has 4 divisors (see below), whose sum is σ = 424704256. Its totient is φ = 418068000.

The previous prime is 421386113. The next prime is 421386137. The reversal of 421386127 is 721683124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421386127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421386092 and 421386101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421386137) 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, 1658874 + ... + 1659127.

It is an arithmetic number, because the mean of its divisors is an integer number (106176064).

Almost surely, 2^421386127 is an apocalyptic number.

421386127 is a deficient number, since it is larger than the sum of its proper divisors (3318129).

421386127 is a wasteful number, since it uses less digits than its factorization.

421386127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318128.

The product of its digits is 16128, while the sum is 34.

The square root of 421386127 is about 20527.6917114419. The cubic root of 421386127 is about 749.7101855060.

The spelling of 421386127 in words is "four hundred twenty-one million, three hundred eighty-six thousand, one hundred twenty-seven".