74704725 has 54 divisors (see below), whose sum is σ = 139724130. Its totient is φ = 38109120.

The previous prime is 74704723. The next prime is 74704741. The reversal of 74704725 is 52740747.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5049009 + 69655716 = 2247^2 + 8346^2 .

It is not a de Polignac number, because 74704725 - 2¹ = 74704723 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74704725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74704723) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 698122 + ... + 698228.

Almost surely, 2^74704725 is an apocalyptic number.

74704725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74704725 is a deficient number, since it is larger than the sum of its proper divisors (65019405).

74704725 is a wasteful number, since it uses less digits than its factorization.

74704725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 74704725 is about 8643.1895154509. The cubic root of 74704725 is about 421.1621723698.

The spelling of 74704725 in words is "seventy-four million, seven hundred four thousand, seven hundred twenty-five".