74029889 has 2 divisors, whose sum is σ = 74029890. Its totient is φ = 74029888.

The previous prime is 74029867. The next prime is 74029897. The reversal of 74029889 is 98892047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 10029889 = 8000^2 + 3167^2 .

It is a cyclic number.

It is not a de Polignac number, because 74029889 - 2⁸ = 74029633 is a prime.

It is not a weakly prime, because it can be changed into another prime (74029289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37014944 + 37014945.

It is an arithmetic number, because the mean of its divisors is an integer number (37014945).

Almost surely, 2^74029889 is an apocalyptic number.

It is an amenable number.

74029889 is a deficient number, since it is larger than the sum of its proper divisors (1).

74029889 is an equidigital number, since it uses as much as digits as its factorization.

74029889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 74029889 is about 8604.0623544928. The cubic root of 74029889 is about 419.8901621320.

The spelling of 74029889 in words is "seventy-four million, twenty-nine thousand, eight hundred eighty-nine".