980478829 has 4 divisors (see below), whose sum is σ = 1069613280. Its totient is φ = 891344380.

The previous prime is 980478773. The next prime is 980478839. The reversal of 980478829 is 928874089.

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 980478829 - 2⁷ = 980478701 is a prime.

It is a super-2 number, since 2×980478829² = 1922677468234422482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 980478829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980478839) 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, 44567209 + ... + 44567230.

It is an arithmetic number, because the mean of its divisors is an integer number (267403320).

Almost surely, 2^980478829 is an apocalyptic number.

It is an amenable number.

980478829 is a deficient number, since it is larger than the sum of its proper divisors (89134451).

980478829 is a wasteful number, since it uses less digits than its factorization.

980478829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89134450.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 980478829 is about 31312.5985667111. The cubic root of 980478829 is about 993.4501359455.

The spelling of 980478829 in words is "nine hundred eighty million, four hundred seventy-eight thousand, eight hundred twenty-nine".