74537739 has 10 divisors (see below), whose sum is σ = 111346620. Its totient is φ = 49691772.

The previous prime is 74537731. The next prime is 74537753. The reversal of 74537739 is 93773547.

It is not a de Polignac number, because 74537739 - 2³ = 74537731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74537694 and 74537703.

It is not an unprimeable number, because it can be changed into a prime (74537731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 460029 + ... + 460190.

It is an arithmetic number, because the mean of its divisors is an integer number (11134662).

Almost surely, 2^74537739 is an apocalyptic number.

74537739 is a deficient number, since it is larger than the sum of its proper divisors (36808881).

74537739 is an equidigital number, since it uses as much as digits as its factorization.

74537739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920231 (or 920222 counting only the distinct ones).

The product of its digits is 555660, while the sum is 45.

The square root of 74537739 is about 8633.5241356007. The cubic root of 74537739 is about 420.8481330960.

The spelling of 74537739 in words is "seventy-four million, five hundred thirty-seven thousand, seven hundred thirty-nine".