73645214 has 4 divisors (see below), whose sum is σ = 110467824. Its totient is φ = 36822606.

The previous prime is 73645129. The next prime is 73645219. The reversal of 73645214 is 41254637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41254637 = 1433 ⋅28789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73645219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18411302 + ... + 18411305.

It is an arithmetic number, because the mean of its divisors is an integer number (27616956).

Almost surely, 2^73645214 is an apocalyptic number.

73645214 is a deficient number, since it is larger than the sum of its proper divisors (36822610).

73645214 is a wasteful number, since it uses less digits than its factorization.

73645214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36822609.

The product of its digits is 20160, while the sum is 32.

The square root of 73645214 is about 8581.6789732546. The cubic root of 73645214 is about 419.1616193458.

The spelling of 73645214 in words is "seventy-three million, six hundred forty-five thousand, two hundred fourteen".