73718245 has 8 divisors (see below), whose sum is σ = 90852984. Its totient is φ = 57380544.

The previous prime is 73718237. The next prime is 73718257. The reversal of 73718245 is 54281737.

It can be written as a sum of positive squares in 4 ways, for example, as 8964036 + 64754209 = 2994^2 + 8047^2 .

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 73718245 - 2³ = 73718237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199054 + ... + 199423.

It is an arithmetic number, because the mean of its divisors is an integer number (11356623).

Almost surely, 2^73718245 is an apocalyptic number.

It is an amenable number.

73718245 is a deficient number, since it is larger than the sum of its proper divisors (17134739).

73718245 is a wasteful number, since it uses less digits than its factorization.

73718245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398519.

The product of its digits is 47040, while the sum is 37.

The square root of 73718245 is about 8585.9329720188. The cubic root of 73718245 is about 419.3001288171.

The spelling of 73718245 in words is "seventy-three million, seven hundred eighteen thousand, two hundred forty-five".