73864394 has 4 divisors (see below), whose sum is σ = 110796594. Its totient is φ = 36932196.

The previous prime is 73864391. The next prime is 73864397. The reversal of 73864394 is 49346837.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49346837 = 233 ⋅211789.

It is an interprime number because it is at equal distance from previous prime (73864391) and next prime (73864397).

It can be written as a sum of positive squares in only one way, i.e., 66504025 + 7360369 = 8155^2 + 2713^2 .

It is not an unprimeable number, because it can be changed into a prime (73864391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18466097 + ... + 18466100.

Almost surely, 2^73864394 is an apocalyptic number.

73864394 is a deficient number, since it is larger than the sum of its proper divisors (36932200).

73864394 is a wasteful number, since it uses less digits than its factorization.

73864394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36932199.

The product of its digits is 435456, while the sum is 44.

The square root of 73864394 is about 8594.4397141408. The cubic root of 73864394 is about 419.5770382954.

The spelling of 73864394 in words is "seventy-three million, eight hundred sixty-four thousand, three hundred ninety-four".