74238623 has 2 divisors, whose sum is σ = 74238624. Its totient is φ = 74238622.

The previous prime is 74238607. The next prime is 74238653. The reversal of 74238623 is 32683247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74238623 - 2⁴ = 74238607 is a prime.

It is a super-2 number, since 2×74238623² = 11022746289872258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74238653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37119311 + 37119312.

It is an arithmetic number, because the mean of its divisors is an integer number (37119312).

Almost surely, 2^74238623 is an apocalyptic number.

74238623 is a deficient number, since it is larger than the sum of its proper divisors (1).

74238623 is an equidigital number, since it uses as much as digits as its factorization.

74238623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 35.

The square root of 74238623 is about 8616.1837840195. The cubic root of 74238623 is about 420.2844312954.

The spelling of 74238623 in words is "seventy-four million, two hundred thirty-eight thousand, six hundred twenty-three".