28629451 has 2 divisors, whose sum is σ = 28629452. Its totient is φ = 28629450.

The previous prime is 28629437. The next prime is 28629481. The reversal of 28629451 is 15492682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28629451 - 2¹³ = 28621259 is a prime.

It is a super-2 number, since 2×28629451² = 1639290929122802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28629451.

It is not a weakly prime, because it can be changed into another prime (28629481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14314725 + 14314726.

It is an arithmetic number, because the mean of its divisors is an integer number (14314726).

Almost surely, 2^28629451 is an apocalyptic number.

28629451 is a deficient number, since it is larger than the sum of its proper divisors (1).

28629451 is an equidigital number, since it uses as much as digits as its factorization.

28629451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 28629451 is about 5350.6495867324. The cubic root of 28629451 is about 305.9175130448.

The spelling of 28629451 in words is "twenty-eight million, six hundred twenty-nine thousand, four hundred fifty-one".