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8870401 is a prime number
BaseRepresentation
bin100001110101…
…101000000001
3121200122220101
4201311220001
54232323101
6514042401
7135253141
oct41655001
917618811
108870401
115009511
122b79401
131ab7677
14126c921
15ba3401
hex875a01

8870401 has 2 divisors, whose sum is σ = 8870402. Its totient is φ = 8870400.

The previous prime is 8870399. The next prime is 8870423. The reversal of 8870401 is 1040788.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4626801 + 4243600 = 2151^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 8870401 - 21 = 8870399 is a prime.

Together with 8870399, it forms a pair of twin primes.

It is equal to p594352 and since 8870401 and 594352 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8870401.

It is not a weakly prime, because it can be changed into another prime (8870431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4435200 + 4435201.

It is an arithmetic number, because the mean of its divisors is an integer number (4435201).

Almost surely, 28870401 is an apocalyptic number.

It is an amenable number.

8870401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8870401 is an equidigital number, since it uses as much as digits as its factorization.

8870401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 8870401 is about 2978.3218429176. The cubic root of 8870401 is about 207.0051186238.

The spelling of 8870401 in words is "eight million, eight hundred seventy thousand, four hundred one".