73893971 has 4 divisors (see below), whose sum is σ = 74046192. Its totient is φ = 73741752.

The previous prime is 73893961. The next prime is 73893991. The reversal of 73893971 is 17939837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17939837 = 41 ⋅437557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73893971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73893961) 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, 75380 + ... + 76353.

It is an arithmetic number, because the mean of its divisors is an integer number (18511548).

Almost surely, 2^73893971 is an apocalyptic number.

73893971 is a deficient number, since it is larger than the sum of its proper divisors (152221).

73893971 is a wasteful number, since it uses less digits than its factorization.

73893971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152220.

The product of its digits is 285768, while the sum is 47.

The square root of 73893971 is about 8596.1602474593. The cubic root of 73893971 is about 419.6330335834.

The spelling of 73893971 in words is "seventy-three million, eight hundred ninety-three thousand, nine hundred seventy-one".