74936245 has 4 divisors (see below), whose sum is σ = 89923500. Its totient is φ = 59948992.

The previous prime is 74936219. The next prime is 74936249. The reversal of 74936245 is 54263947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54263947 = 1447 ⋅37501.

It can be written as a sum of positive squares in 2 ways, for example, as 30019441 + 44916804 = 5479^2 + 6702^2 .

It is a cyclic number.

It is not a de Polignac number, because 74936245 - 2⁹ = 74935733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74936198 and 74936207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74936249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7493620 + ... + 7493629.

It is an arithmetic number, because the mean of its divisors is an integer number (22480875).

Almost surely, 2^74936245 is an apocalyptic number.

It is an amenable number.

74936245 is a deficient number, since it is larger than the sum of its proper divisors (14987255).

74936245 is a wasteful number, since it uses less digits than its factorization.

74936245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14987254.

The product of its digits is 181440, while the sum is 40.

The square root of 74936245 is about 8656.5723586186. The cubic root of 74936245 is about 421.5968031094.

The spelling of 74936245 in words is "seventy-four million, nine hundred thirty-six thousand, two hundred forty-five".