73788434 has 8 divisors (see below), whose sum is σ = 113674188. Its totient is φ = 35897040.

The previous prime is 73788431. The next prime is 73788443. The reversal of 73788434 is 43488737.

It can be written as a sum of positive squares in 2 ways, for example, as 66471409 + 7317025 = 8153^2 + 2705^2 .

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

It is not an unprimeable number, because it can be changed into a prime (73788431) 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, 498497 + ... + 498644.

Almost surely, 2^73788434 is an apocalyptic number.

73788434 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

73788434 is a deficient number, since it is larger than the sum of its proper divisors (39885754).

73788434 is a wasteful number, since it uses less digits than its factorization.

73788434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997180.

The product of its digits is 451584, while the sum is 44.

The square root of 73788434 is about 8590.0194411887. The cubic root of 73788434 is about 419.4331620133.

The spelling of 73788434 in words is "seventy-three million, seven hundred eighty-eight thousand, four hundred thirty-four".