9979451 has 8 divisors (see below), whose sum is σ = 10382880. Its totient is φ = 9580032.

The previous prime is 9979433. The next prime is 9979469. The reversal of 9979451 is 1549799.

It is an interprime number because it is at equal distance from previous prime (9979433) and next prime (9979469).

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 9979451 - 2¹⁰ = 9978427 is a prime.

It is a super-2 number, since 2×9979451² = 199178884522802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9979471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 6488.

It is an arithmetic number, because the mean of its divisors is an integer number (1297860).

Almost surely, 2^9979451 is an apocalyptic number.

9979451 is a deficient number, since it is larger than the sum of its proper divisors (403429).

9979451 is a wasteful number, since it uses less digits than its factorization.

9979451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its digits is 102060, while the sum is 44.

The square root of 9979451 is about 3159.0269071345. The cubic root of 9979451 is about 215.2957962112.

The spelling of 9979451 in words is "nine million, nine hundred seventy-nine thousand, four hundred fifty-one".