74554399 has 2 divisors, whose sum is σ = 74554400. Its totient is φ = 74554398.

The previous prime is 74554357. The next prime is 74554429. The reversal of 74554399 is 99345547.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74554399 - 2⁹ = 74553887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74555399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37277199 + 37277200.

It is an arithmetic number, because the mean of its divisors is an integer number (37277200).

Almost surely, 2^74554399 is an apocalyptic number.

74554399 is a deficient number, since it is larger than the sum of its proper divisors (1).

74554399 is an equidigital number, since it uses as much as digits as its factorization.

74554399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The square root of 74554399 is about 8634.4889252347. The cubic root of 74554399 is about 420.8794854807.

The spelling of 74554399 in words is "seventy-four million, five hundred fifty-four thousand, three hundred ninety-nine".