421295893 has 8 divisors (see below), whose sum is σ = 424033920. Its totient is φ = 418565280.

The previous prime is 421295879. The next prime is 421295923. The reversal of 421295893 is 398592124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421295893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421295803) 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, 150321 + ... + 153097.

It is an arithmetic number, because the mean of its divisors is an integer number (53004240).

Almost surely, 2^421295893 is an apocalyptic number.

It is an amenable number.

421295893 is a deficient number, since it is larger than the sum of its proper divisors (2738027).

421295893 is a wasteful number, since it uses less digits than its factorization.

421295893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707.

The product of its digits is 155520, while the sum is 43.

The square root of 421295893 is about 20525.4937334038. The cubic root of 421295893 is about 749.6566683366.

The spelling of 421295893 in words is "four hundred twenty-one million, two hundred ninety-five thousand, eight hundred ninety-three".