74090851 has 2 divisors, whose sum is σ = 74090852. Its totient is φ = 74090850.

The previous prime is 74090827. The next prime is 74090857. The reversal of 74090851 is 15809047.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74090851 - 2¹⁷ = 73959779 is a prime.

It is not a weakly prime, because it can be changed into another prime (74090857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37045425 + 37045426.

It is an arithmetic number, because the mean of its divisors is an integer number (37045426).

Almost surely, 2^74090851 is an apocalyptic number.

74090851 is a deficient number, since it is larger than the sum of its proper divisors (1).

74090851 is an equidigital number, since it uses as much as digits as its factorization.

74090851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 74090851 is about 8607.6042543788. The cubic root of 74090851 is about 420.0053873081.

Adding to 74090851 its reverse (15809047), we get a palindrome (89899898).

The spelling of 74090851 in words is "seventy-four million, ninety thousand, eight hundred fifty-one".