980821461 has 4 divisors (see below), whose sum is σ = 1307761952. Its totient is φ = 653880972.

The previous prime is 980821459. The next prime is 980821469. The reversal of 980821461 is 164128089.

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 not a de Polignac number, because 980821461 - 2¹ = 980821459 is a prime.

It is a super-3 number, since 3×980821461³ (a number of 28 digits) contains 333 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 (980821469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163470241 + ... + 163470246.

It is an arithmetic number, because the mean of its divisors is an integer number (326940488).

Almost surely, 2^980821461 is an apocalyptic number.

It is an amenable number.

980821461 is a deficient number, since it is larger than the sum of its proper divisors (326940491).

980821461 is a wasteful number, since it uses less digits than its factorization.

980821461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326940490.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 980821461 is about 31318.0692412543. The cubic root of 980821461 is about 993.5658440923.

The spelling of 980821461 in words is "nine hundred eighty million, eight hundred twenty-one thousand, four hundred sixty-one".