74870743 has 2 divisors, whose sum is σ = 74870744. Its totient is φ = 74870742.

The previous prime is 74870717. The next prime is 74870759. The reversal of 74870743 is 34707847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74870743 - 2⁹ = 74870231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74870696 and 74870705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74870143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37435371 + 37435372.

It is an arithmetic number, because the mean of its divisors is an integer number (37435372).

Almost surely, 2^74870743 is an apocalyptic number.

74870743 is a deficient number, since it is larger than the sum of its proper divisors (1).

74870743 is an equidigital number, since it uses as much as digits as its factorization.

74870743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 74870743 is about 8652.7881633610. The cubic root of 74870743 is about 421.4739276172.

The spelling of 74870743 in words is "seventy-four million, eight hundred seventy thousand, seven hundred forty-three".