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19420927 is a prime number
BaseRepresentation
bin100101000010…
…1011011111111
31100112200111121
41022011123333
514432432202
61532131411
7324034531
oct112053377
940480447
1019420927
11aa65259
126606b67
13403c996
142817851
151a89537
hex12856ff

19420927 has 2 divisors, whose sum is σ = 19420928. Its totient is φ = 19420926.

The previous prime is 19420913. The next prime is 19420939. The reversal of 19420927 is 72902491.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19420927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19420892 and 19420901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19420127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9710463 + 9710464.

It is an arithmetic number, because the mean of its divisors is an integer number (9710464).

Almost surely, 219420927 is an apocalyptic number.

19420927 is a deficient number, since it is larger than the sum of its proper divisors (1).

19420927 is an equidigital number, since it uses as much as digits as its factorization.

19420927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 19420927 is about 4406.9180841037. The cubic root of 19420927 is about 268.7963199772.

The spelling of 19420927 in words is "nineteen million, four hundred twenty thousand, nine hundred twenty-seven".