968541421 has 4 divisors (see below), whose sum is σ = 972224352. Its totient is φ = 964858492.

The previous prime is 968541407. The next prime is 968541439. The reversal of 968541421 is 124145869.

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 968541421 - 2⁵ = 968541389 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 (968545421) 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, 1841071 + ... + 1841596.

It is an arithmetic number, because the mean of its divisors is an integer number (243056088).

Almost surely, 2^968541421 is an apocalyptic number.

It is an amenable number.

968541421 is a deficient number, since it is larger than the sum of its proper divisors (3682931).

968541421 is a wasteful number, since it uses less digits than its factorization.

968541421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682930.

The product of its digits is 69120, while the sum is 40.

The square root of 968541421 is about 31121.3981209071. The cubic root of 968541421 is about 989.4018837251.

The spelling of 968541421 in words is "nine hundred sixty-eight million, five hundred forty-one thousand, four hundred twenty-one".