73473506 has 4 divisors (see below), whose sum is σ = 110210262. Its totient is φ = 36736752.

The previous prime is 73473481. The next prime is 73473563. The reversal of 73473506 is 60537437.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60537437 = 61 ⋅992417.

It can be written as a sum of positive squares in only one way, i.e., 55368481 + 18105025 = 7441^2 + 4255^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18368375 + ... + 18368378.

Almost surely, 2^73473506 is an apocalyptic number.

73473506 is a deficient number, since it is larger than the sum of its proper divisors (36736756).

73473506 is a wasteful number, since it uses less digits than its factorization.

73473506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36736755.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 73473506 is about 8571.6687990146. The cubic root of 73473506 is about 418.8355994608.

The spelling of 73473506 in words is "seventy-three million, four hundred seventy-three thousand, five hundred six".