74793491 has 2 divisors, whose sum is σ = 74793492. Its totient is φ = 74793490.

The previous prime is 74793479. The next prime is 74793517. The reversal of 74793491 is 19439747.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19439747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74793491 - 2⁶ = 74793427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74793431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37396745 + 37396746.

It is an arithmetic number, because the mean of its divisors is an integer number (37396746).

Almost surely, 2^74793491 is an apocalyptic number.

74793491 is a deficient number, since it is larger than the sum of its proper divisors (1).

74793491 is an equidigital number, since it uses as much as digits as its factorization.

74793491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 74793491 is about 8648.3230166316. The cubic root of 74793491 is about 421.3289181098.

The spelling of 74793491 in words is "seventy-four million, seven hundred ninety-three thousand, four hundred ninety-one".