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980797 = 1317487
BaseRepresentation
bin11101111011100111101
31211211101211
43233130331
5222341142
633004421
711223316
oct3573475
91754354
10980797
1160a984
123b3711
1328456c
141b760d
15145917
hexef73d

980797 has 4 divisors (see below), whose sum is σ = 988416. Its totient is φ = 973180.

The previous prime is 980773. The next prime is 980801. The reversal of 980797 is 797089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797089 = 1575077.

It is a cyclic number.

It is not a de Polignac number, because 980797 - 211 = 978749 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980717) 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, 3613 + ... + 3874.

It is an arithmetic number, because the mean of its divisors is an integer number (247104).

2980797 is an apocalyptic number.

It is an amenable number.

980797 is a deficient number, since it is larger than the sum of its proper divisors (7619).

980797 is a wasteful number, since it uses less digits than its factorization.

980797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 980797 is about 990.3519576393. The cubic root of 980797 is about 99.3557584412.

The spelling of 980797 in words is "nine hundred eighty thousand, seven hundred ninety-seven".

Divisors: 1 131 7487 980797