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9961417 = 54718211

9961417 has 4 divisors (see below), whose sum is σ = 9980176. Its totient is φ = 9942660.

The previous prime is 9961397. The next prime is 9961421. The reversal of 9961417 is 7141699.

It can be divided in two parts, 99 and 61417, that added together give a palindrome (61516).

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9961417 is a prime.

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 9961417 parts by 4463 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9961487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8559 + ... + 9652.

It is an arithmetic number, because the mean of its divisors is an integer number (2495044).

Almost surely, 29961417 is an apocalyptic number.

It is an amenable number.

9961417 is a deficient number, since it is larger than the sum of its proper divisors (18759).

9961417 is a wasteful number, since it uses less digits than its factorization.

9961417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18758.

The product of its digits is 13608, while the sum is 37.

The square root of 9961417 is about 3156.1712564435. The cubic root of 9961417 is about 215.1660300369.

The spelling of 9961417 in words is "nine million, nine hundred sixty-one thousand, four hundred seventeen".

Divisors: 1 547 18211 9961417