980630261 has 32 divisors (see below), whose sum is σ = 1181980800. Its totient is φ = 803727360.

The previous prime is 980630219. The next prime is 980630263. The reversal of 980630261 is 162036089.

It is a de Polignac number, because none of the positive numbers 2^k-980630261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980630263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1717106 + ... + 1717676.

It is an arithmetic number, because the mean of its divisors is an integer number (36936900).

Almost surely, 2^980630261 is an apocalyptic number.

It is an amenable number.

980630261 is a deficient number, since it is larger than the sum of its proper divisors (201350539).

980630261 is a wasteful number, since it uses less digits than its factorization.

980630261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 980630261 is about 31315.0165415891. The cubic root of 980630261 is about 993.5012784391.

The spelling of 980630261 in words is "nine hundred eighty million, six hundred thirty thousand, two hundred sixty-one".