74690423 has 2 divisors, whose sum is σ = 74690424. Its totient is φ = 74690422.

The previous prime is 74690393. The next prime is 74690437. The reversal of 74690423 is 32409647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74690423 - 2¹² = 74686327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74690443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37345211 + 37345212.

It is an arithmetic number, because the mean of its divisors is an integer number (37345212).

Almost surely, 2^74690423 is an apocalyptic number.

74690423 is a deficient number, since it is larger than the sum of its proper divisors (1).

74690423 is an equidigital number, since it uses as much as digits as its factorization.

74690423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 74690423 is about 8642.3621192357. The cubic root of 74690423 is about 421.1352939012.

The spelling of 74690423 in words is "seventy-four million, six hundred ninety thousand, four hundred twenty-three".