73778383 has 8 divisors (see below), whose sum is σ = 84618368. Its totient is φ = 63013464.

The previous prime is 73778381. The next prime is 73778389. The reversal of 73778383 is 38387737.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 73778383 - 2¹ = 73778381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73778381) 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, 16641 + ... + 20602.

It is an arithmetic number, because the mean of its divisors is an integer number (10577296).

Almost surely, 2^73778383 is an apocalyptic number.

73778383 is a deficient number, since it is larger than the sum of its proper divisors (10839985).

73778383 is a wasteful number, since it uses less digits than its factorization.

73778383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37533.

The product of its digits is 592704, while the sum is 46.

The square root of 73778383 is about 8589.4343818438. The cubic root of 73778383 is about 419.4141169593.

The spelling of 73778383 in words is "seventy-three million, seven hundred seventy-eight thousand, three hundred eighty-three".