73205078 has 4 divisors (see below), whose sum is σ = 109807620. Its totient is φ = 36602538.

The previous prime is 73205053. The next prime is 73205107. The reversal of 73205078 is 87050237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87050237 = 73 ⋅1192469.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18301268 + ... + 18301271.

It is an arithmetic number, because the mean of its divisors is an integer number (27451905).

Almost surely, 2^73205078 is an apocalyptic number.

73205078 is a deficient number, since it is larger than the sum of its proper divisors (36602542).

73205078 is a wasteful number, since it uses less digits than its factorization.

73205078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36602541.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 73205078 is about 8555.9966105650. The cubic root of 73205078 is about 418.3249192589.

The spelling of 73205078 in words is "seventy-three million, two hundred five thousand, seventy-eight".