73640603 has 4 divisors (see below), whose sum is σ = 74847888. Its totient is φ = 72433320.

The previous prime is 73640579. The next prime is 73640627. The reversal of 73640603 is 30604637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30604637 = 7 ⋅4372091.

It is an interprime number because it is at equal distance from previous prime (73640579) and next prime (73640627).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73640603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73640663) 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, 603551 + ... + 603672.

It is an arithmetic number, because the mean of its divisors is an integer number (18711972).

Almost surely, 2^73640603 is an apocalyptic number.

73640603 is a deficient number, since it is larger than the sum of its proper divisors (1207285).

73640603 is a wasteful number, since it uses less digits than its factorization.

73640603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207284.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 73640603 is about 8581.4103153270. The cubic root of 73640603 is about 419.1528711215.

The spelling of 73640603 in words is "seventy-three million, six hundred forty thousand, six hundred three".