74743477 has 2 divisors, whose sum is σ = 74743478. Its totient is φ = 74743476.

The previous prime is 74743429. The next prime is 74743507. The reversal of 74743477 is 77434747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66683556 + 8059921 = 8166^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 74743477 - 2⁷ = 74743349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74773477) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37371738 + 37371739.

It is an arithmetic number, because the mean of its divisors is an integer number (37371739).

Almost surely, 2^74743477 is an apocalyptic number.

It is an amenable number.

74743477 is a deficient number, since it is larger than the sum of its proper divisors (1).

74743477 is an equidigital number, since it uses as much as digits as its factorization.

74743477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460992, while the sum is 43.

The square root of 74743477 is about 8645.4309898350. The cubic root of 74743477 is about 421.2349837181.

The spelling of 74743477 in words is "seventy-four million, seven hundred forty-three thousand, four hundred seventy-seven".