980279421 has 16 divisors (see below), whose sum is σ = 1427780928. Its totient is φ = 593308800.

The previous prime is 980279393. The next prime is 980279473. The reversal of 980279421 is 124972089.

It is not a de Polignac number, because 980279421 - 2¹⁵ = 980246653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980279621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5361 + ... + 44601.

It is an arithmetic number, because the mean of its divisors is an integer number (89236308).

Almost surely, 2^980279421 is an apocalyptic number.

It is an amenable number.

980279421 is a deficient number, since it is larger than the sum of its proper divisors (447501507).

980279421 is a wasteful number, since it uses less digits than its factorization.

980279421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40012.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 980279421 is about 31309.4142551406. The cubic root of 980279421 is about 993.3827826856.

It can be divided in two parts, 980279 and 421, that added together give a triangular number (980700 = T₁₄₀₀).

The spelling of 980279421 in words is "nine hundred eighty million, two hundred seventy-nine thousand, four hundred twenty-one".