74903431 has 2 divisors, whose sum is σ = 74903432. Its totient is φ = 74903430.

The previous prime is 74903369. The next prime is 74903443. The reversal of 74903431 is 13430947.

It is a strong prime.

It is an emirp because it is prime and its reverse (13430947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74903431 - 2¹⁹ = 74379143 is a prime.

It is a super-2 number, since 2×74903431² = 11221047951143522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74903393 and 74903402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74903831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37451715 + 37451716.

It is an arithmetic number, because the mean of its divisors is an integer number (37451716).

Almost surely, 2^74903431 is an apocalyptic number.

74903431 is a deficient number, since it is larger than the sum of its proper divisors (1).

74903431 is an equidigital number, since it uses as much as digits as its factorization.

74903431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 74903431 is about 8654.6768281664. The cubic root of 74903431 is about 421.5352561357.

The spelling of 74903431 in words is "seventy-four million, nine hundred three thousand, four hundred thirty-one".