74956645 has 8 divisors (see below), whose sum is σ = 90839160. Its totient is φ = 59371200.

The previous prime is 74956643. The next prime is 74956649. The reversal of 74956645 is 54665947.

It can be written as a sum of positive squares in 4 ways, for example, as 13082689 + 61873956 = 3617^2 + 7866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74956645 - 2¹ = 74956643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74956595 and 74956604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74956643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73710 + ... + 74719.

It is an arithmetic number, because the mean of its divisors is an integer number (11354895).

Almost surely, 2^74956645 is an apocalyptic number.

It is an amenable number.

74956645 is a deficient number, since it is larger than the sum of its proper divisors (15882515).

74956645 is a wasteful number, since it uses less digits than its factorization.

74956645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148535.

The product of its digits is 907200, while the sum is 46.

The square root of 74956645 is about 8657.7505739078. The cubic root of 74956645 is about 421.6350569364.

The spelling of 74956645 in words is "seventy-four million, nine hundred fifty-six thousand, six hundred forty-five".