74473387 has 2 divisors, whose sum is σ = 74473388. Its totient is φ = 74473386.

The previous prime is 74473367. The next prime is 74473393. The reversal of 74473387 is 78337447.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74473387 is a prime.

It is not a weakly prime, because it can be changed into another prime (74473367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37236693 + 37236694.

It is an arithmetic number, because the mean of its divisors is an integer number (37236694).

Almost surely, 2^74473387 is an apocalyptic number.

74473387 is a deficient number, since it is larger than the sum of its proper divisors (1).

74473387 is an equidigital number, since it uses as much as digits as its factorization.

74473387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 43.

The square root of 74473387 is about 8629.7964634167. The cubic root of 74473387 is about 420.7269854420.

The spelling of 74473387 in words is "seventy-four million, four hundred seventy-three thousand, three hundred eighty-seven".