980388943 has 4 divisors (see below), whose sum is σ = 981658008. Its totient is φ = 979119880.

The previous prime is 980388931. The next prime is 980388947. The reversal of 980388943 is 349883089.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980388943 is a prime.

It is a super-2 number, since 2×980388943² = 1922324959113314498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980388947) 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, 633373 + ... + 634918.

It is an arithmetic number, because the mean of its divisors is an integer number (245414502).

Almost surely, 2^980388943 is an apocalyptic number.

980388943 is a deficient number, since it is larger than the sum of its proper divisors (1269065).

980388943 is a wasteful number, since it uses less digits than its factorization.

980388943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269064.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 980388943 is about 31311.1632329430. The cubic root of 980388943 is about 993.4197766336.

The spelling of 980388943 in words is "nine hundred eighty million, three hundred eighty-eight thousand, nine hundred forty-three".