980388899 has 8 divisors (see below), whose sum is σ = 1139435520. Its totient is φ = 826090056.

The previous prime is 980388881. The next prime is 980388931. The reversal of 980388899 is 998883089.

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 980388899 - 2¹⁶ = 980323363 is a prime.

It is a super-2 number, since 2×980388899² = 1922324786564864402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980688899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186499 + ... + 1187324.

It is an arithmetic number, because the mean of its divisors is an integer number (142429440).

Almost surely, 2^980388899 is an apocalyptic number.

980388899 is a deficient number, since it is larger than the sum of its proper divisors (159046621).

980388899 is a wasteful number, since it uses less digits than its factorization.

980388899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373889.

The product of its (nonzero) digits is 8957952, while the sum is 62.

The square root of 980388899 is about 31311.1625303182. The cubic root of 980388899 is about 993.4197617719.

The spelling of 980388899 in words is "nine hundred eighty million, three hundred eighty-eight thousand, eight hundred ninety-nine".