74189725 has 12 divisors (see below), whose sum is σ = 93505300. Its totient is φ = 58377600.

The previous prime is 74189723. The next prime is 74189783. The reversal of 74189725 is 52798147.

It can be written as a sum of positive squares in 6 ways, for example, as 16216729 + 57972996 = 4027^2 + 7614^2 .

It is not a de Polignac number, because 74189725 - 2¹ = 74189723 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74189723) 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 11 ways as a sum of consecutive naturals, for example, 22800 + ... + 25849.

Almost surely, 2^74189725 is an apocalyptic number.

It is an amenable number.

74189725 is a deficient number, since it is larger than the sum of its proper divisors (19315575).

74189725 is a wasteful number, since it uses less digits than its factorization.

74189725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48720 (or 48715 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 74189725 is about 8613.3457494751. The cubic root of 74189725 is about 420.1921362025.

The spelling of 74189725 in words is "seventy-four million, one hundred eighty-nine thousand, seven hundred twenty-five".