74725737 has 4 divisors (see below), whose sum is σ = 99634320. Its totient is φ = 49817156.

The previous prime is 74725667. The next prime is 74725753. The reversal of 74725737 is 73752747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74725737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74725757) 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 3 ways as a sum of consecutive naturals, for example, 12454287 + ... + 12454292.

It is an arithmetic number, because the mean of its divisors is an integer number (24908580).

Almost surely, 2^74725737 is an apocalyptic number.

It is an amenable number.

74725737 is a deficient number, since it is larger than the sum of its proper divisors (24908583).

74725737 is a wasteful number, since it uses less digits than its factorization.

74725737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24908582.

The product of its digits is 288120, while the sum is 42.

The square root of 74725737 is about 8644.4049534945. The cubic root of 74725737 is about 421.2016550576.

The spelling of 74725737 in words is "seventy-four million, seven hundred twenty-five thousand, seven hundred thirty-seven".