73838407 has 4 divisors (see below), whose sum is σ = 74246536. Its totient is φ = 73430280.

The previous prime is 73838383. The next prime is 73838423. The reversal of 73838407 is 70483837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70483837 = 43 ⋅1639159.

It is a cyclic number.

It is not a de Polignac number, because 73838407 - 2¹¹ = 73836359 is a prime.

It is a super-2 number, since 2×73838407² = 10904220696595298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73838407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73838467) 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, 203793 + ... + 204154.

It is an arithmetic number, because the mean of its divisors is an integer number (18561634).

Almost surely, 2^73838407 is an apocalyptic number.

73838407 is a deficient number, since it is larger than the sum of its proper divisors (408129).

73838407 is a wasteful number, since it uses less digits than its factorization.

73838407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408128.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 73838407 is about 8592.9277315709. The cubic root of 73838407 is about 419.5278272712.

The spelling of 73838407 in words is "seventy-three million, eight hundred thirty-eight thousand, four hundred seven".