980776865 has 8 divisors (see below), whose sum is σ = 1238876160. Its totient is φ = 743325552.

The previous prime is 980776859. The next prime is 980776921. The reversal of 980776865 is 568677089.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 980776865 - 2¹² = 980772769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 980776865.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5161889 + ... + 5162078.

It is an arithmetic number, because the mean of its divisors is an integer number (154859520).

Almost surely, 2^980776865 is an apocalyptic number.

980776865 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

980776865 is a deficient number, since it is larger than the sum of its proper divisors (258099295).

980776865 is a wasteful number, since it uses less digits than its factorization.

980776865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10323991.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The square root of 980776865 is about 31317.3572480182. The cubic root of 980776865 is about 993.5507853768.

The spelling of 980776865 in words is "nine hundred eighty million, seven hundred seventy-six thousand, eight hundred sixty-five".