73477438 has 4 divisors (see below), whose sum is σ = 110216160. Its totient is φ = 36738718.

The previous prime is 73477429. The next prime is 73477441. The reversal of 73477438 is 83477437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83477437 = 1951 ⋅42787.

It is a junction number, because it is equal to n+sod(n) for n = 73477394 and 73477403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18369358 + ... + 18369361.

It is an arithmetic number, because the mean of its divisors is an integer number (27554040).

Almost surely, 2^73477438 is an apocalyptic number.

73477438 is a deficient number, since it is larger than the sum of its proper divisors (36738722).

73477438 is a wasteful number, since it uses less digits than its factorization.

73477438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36738721.

The product of its digits is 395136, while the sum is 43.

The square root of 73477438 is about 8571.8981561845. The cubic root of 73477438 is about 418.8430707807.

Subtracting 73477438 from its reverse (83477437), we obtain a palindrome (9999999).

The spelling of 73477438 in words is "seventy-three million, four hundred seventy-seven thousand, four hundred thirty-eight".