75444634 has 4 divisors (see below), whose sum is σ = 113166954. Its totient is φ = 37722316.

The previous prime is 75444619. The next prime is 75444641. The reversal of 75444634 is 43644457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43644457 = 17 ⋅2567321.

It can be written as a sum of positive squares in only one way, i.e., 65853225 + 9591409 = 8115^2 + 3097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75444593 and 75444602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18861157 + ... + 18861160.

Almost surely, 2^75444634 is an apocalyptic number.

75444634 is a deficient number, since it is larger than the sum of its proper divisors (37722320).

75444634 is a wasteful number, since it uses less digits than its factorization.

75444634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37722319.

The product of its digits is 161280, while the sum is 37.

The square root of 75444634 is about 8685.8870589019. The cubic root of 75444634 is about 422.5480663777.

The spelling of 75444634 in words is "seventy-five million, four hundred forty-four thousand, six hundred thirty-four".