16979401 has 2 divisors, whose sum is σ = 16979402. Its totient is φ = 16979400.

The previous prime is 16979387. The next prime is 16979419. The reversal of 16979401 is 10497961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11799225 + 5180176 = 3435^2 + 2276^2 .

It is an emirp because it is prime and its reverse (10497961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16979401 - 2¹¹ = 16977353 is a prime.

It is not a weakly prime, because it can be changed into another prime (16979441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8489700 + 8489701.

It is an arithmetic number, because the mean of its divisors is an integer number (8489701).

Almost surely, 2^16979401 is an apocalyptic number.

It is an amenable number.

16979401 is a deficient number, since it is larger than the sum of its proper divisors (1).

16979401 is an equidigital number, since it uses as much as digits as its factorization.

16979401 is an evil number, because the sum of its binary digits is even.

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

The square root of 16979401 is about 4120.6068727798. The cubic root of 16979401 is about 257.0242625229.

The spelling of 16979401 in words is "sixteen million, nine hundred seventy-nine thousand, four hundred one".