980997493 has 32 divisors (see below), whose sum is σ = 1216160000. Its totient is φ = 788719680.

The previous prime is 980997473. The next prime is 980997499. The reversal of 980997493 is 394799089.

It is a de Polignac number, because none of the positive numbers 2^k-980997493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980997499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 709663 + ... + 711043.

It is an arithmetic number, because the mean of its divisors is an integer number (38005000).

Almost surely, 2^980997493 is an apocalyptic number.

It is an amenable number.

980997493 is a deficient number, since it is larger than the sum of its proper divisors (235162507).

980997493 is a wasteful number, since it uses less digits than its factorization.

980997493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 58.

The square root of 980997493 is about 31320.8795055311. The cubic root of 980997493 is about 993.6252802987.

The spelling of 980997493 in words is "nine hundred eighty million, nine hundred ninety-seven thousand, four hundred ninety-three".