73853642 has 8 divisors (see below), whose sum is σ = 110902500. Its totient is φ = 36886144.

The previous prime is 73853641. The next prime is 73853651. The reversal of 73853642 is 24635837.

It can be written as a sum of positive squares in 2 ways, for example, as 71385601 + 2468041 = 8449^2 + 1571^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 73853596 and 73853605.

It is not an unprimeable number, because it can be changed into a prime (73853641) 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, 18017 + ... + 21732.

Almost surely, 2^73853642 is an apocalyptic number.

73853642 is a deficient number, since it is larger than the sum of its proper divisors (37048858).

73853642 is a wasteful number, since it uses less digits than its factorization.

73853642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40680.

The product of its digits is 120960, while the sum is 38.

The square root of 73853642 is about 8593.8141706695. The cubic root of 73853642 is about 419.5566788639.

The spelling of 73853642 in words is "seventy-three million, eight hundred fifty-three thousand, six hundred forty-two".