945640603 has 4 divisors (see below), whose sum is σ = 953086720. Its totient is φ = 938194488.

The previous prime is 945640573. The next prime is 945640627. The reversal of 945640603 is 306046549.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 945640603 - 2⁵ = 945640571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145640603) 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, 3722868 + ... + 3723121.

It is an arithmetic number, because the mean of its divisors is an integer number (238271680).

Almost surely, 2^945640603 is an apocalyptic number.

945640603 is a deficient number, since it is larger than the sum of its proper divisors (7446117).

945640603 is a wasteful number, since it uses less digits than its factorization.

945640603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446116.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 945640603 is about 30751.2699412561. The cubic root of 945640603 is about 981.5415842286.

The spelling of 945640603 in words is "nine hundred forty-five million, six hundred forty thousand, six hundred three".