421032901 has 4 divisors (see below), whose sum is σ = 428976972. Its totient is φ = 413088832.

The previous prime is 421032893. The next prime is 421032947. The reversal of 421032901 is 109230124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 379236676 + 41796225 = 19474^2 + 6465^2 .

It is a cyclic number.

It is not a de Polignac number, because 421032901 - 2³ = 421032893 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 (421036901) 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, 3971956 + ... + 3972061.

It is an arithmetic number, because the mean of its divisors is an integer number (107244243).

Almost surely, 2^421032901 is an apocalyptic number.

It is an amenable number.

421032901 is a deficient number, since it is larger than the sum of its proper divisors (7944071).

421032901 is an equidigital number, since it uses as much as digits as its factorization.

421032901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7944070.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 421032901 is about 20519.0862613324. The cubic root of 421032901 is about 749.5006459716.

The spelling of 421032901 in words is "four hundred twenty-one million, thirty-two thousand, nine hundred one".