73853623 has 4 divisors (see below), whose sum is σ = 73926288. Its totient is φ = 73780960.

The previous prime is 73853617. The next prime is 73853641. The reversal of 73853623 is 32635837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32635837 = 13 ⋅2510449.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73853623 is a prime.

It is a super-2 number, since 2×73853623² = 10908715260452258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73853603) 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, 34786 + ... + 36847.

It is an arithmetic number, because the mean of its divisors is an integer number (18481572).

Almost surely, 2^73853623 is an apocalyptic number.

73853623 is a deficient number, since it is larger than the sum of its proper divisors (72665).

73853623 is a wasteful number, since it uses less digits than its factorization.

73853623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72664.

The product of its digits is 90720, while the sum is 37.

The square root of 73853623 is about 8593.8130652231. The cubic root of 73853623 is about 419.5566428847.

The spelling of 73853623 in words is "seventy-three million, eight hundred fifty-three thousand, six hundred twenty-three".