29628457 has 2 divisors, whose sum is σ = 29628458. Its totient is φ = 29628456.

The previous prime is 29628421. The next prime is 29628479. The reversal of 29628457 is 75482692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26925721 + 2702736 = 5189^2 + 1644^2 .

It is a cyclic number.

It is not a de Polignac number, because 29628457 - 2⁷ = 29628329 is a prime.

It is not a weakly prime, because it can be changed into another prime (29628257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14814228 + 14814229.

It is an arithmetic number, because the mean of its divisors is an integer number (14814229).

Almost surely, 2^29628457 is an apocalyptic number.

It is an amenable number.

29628457 is a deficient number, since it is larger than the sum of its proper divisors (1).

29628457 is an equidigital number, since it uses as much as digits as its factorization.

29628457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 29628457 is about 5443.2028255431. The cubic root of 29628457 is about 309.4351733719.

The spelling of 29628457 in words is "twenty-nine million, six hundred twenty-eight thousand, four hundred fifty-seven".