325776421 has 4 divisors (see below), whose sum is σ = 325996992. Its totient is φ = 325555852.

The previous prime is 325776403. The next prime is 325776449. The reversal of 325776421 is 124677523.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 325776421 - 2¹¹ = 325774373 is a prime.

It is a super-2 number, since 2×325776421² = 212260552959138482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325776461) 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, 108055 + ... + 111028.

It is an arithmetic number, because the mean of its divisors is an integer number (81499248).

Almost surely, 2^325776421 is an apocalyptic number.

It is an amenable number.

325776421 is a deficient number, since it is larger than the sum of its proper divisors (220571).

325776421 is a wasteful number, since it uses less digits than its factorization.

325776421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220570.

The product of its digits is 70560, while the sum is 37.

The square root of 325776421 is about 18049.2775755707. The cubic root of 325776421 is about 688.0815018881.

The spelling of 325776421 in words is "three hundred twenty-five million, seven hundred seventy-six thousand, four hundred twenty-one".