15428011 has 2 divisors, whose sum is σ = 15428012. Its totient is φ = 15428010.

The previous prime is 15427949. The next prime is 15428047. The reversal of 15428011 is 11082451.

It is a strong prime.

It is an emirp because it is prime and its reverse (11082451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15428011 - 2¹³ = 15419819 is a prime.

It is a super-2 number, since 2×15428011² = 476047046832242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15428051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7714005 + 7714006.

It is an arithmetic number, because the mean of its divisors is an integer number (7714006).

Almost surely, 2^15428011 is an apocalyptic number.

15428011 is a deficient number, since it is larger than the sum of its proper divisors (1).

15428011 is an equidigital number, since it uses as much as digits as its factorization.

15428011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 15428011 is about 3927.8506845347. The cubic root of 15428011 is about 248.9449457053.

The spelling of 15428011 in words is "fifteen million, four hundred twenty-eight thousand, eleven".