73378737 has 8 divisors (see below), whose sum is σ = 108709280. Its totient is φ = 48919140.

The previous prime is 73378709. The next prime is 73378751. The reversal of 73378737 is 73787337.

It is not a de Polignac number, because 73378737 - 2⁶ = 73378673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73378692 and 73378701.

It is not an unprimeable number, because it can be changed into a prime (73378337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358839 + ... + 1358892.

It is an arithmetic number, because the mean of its divisors is an integer number (13588660).

Almost surely, 2^73378737 is an apocalyptic number.

It is an amenable number.

73378737 is a deficient number, since it is larger than the sum of its proper divisors (35330543).

73378737 is a wasteful number, since it uses less digits than its factorization.

73378737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717740 (or 2717734 counting only the distinct ones).

The product of its digits is 518616, while the sum is 45.

The square root of 73378737 is about 8566.1389785597. The cubic root of 73378737 is about 418.6554451393.

The spelling of 73378737 in words is "seventy-three million, three hundred seventy-eight thousand, seven hundred thirty-seven".