945880073 has 4 divisors (see below), whose sum is σ = 967877328. Its totient is φ = 923882820.

The previous prime is 945880057. The next prime is 945880081. The reversal of 945880073 is 370088549.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 945880073 - 2⁴ = 945880057 is a prime.

It is a super-2 number, since 2×945880073² = 1789378224996970658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945880093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10998563 + ... + 10998648.

It is an arithmetic number, because the mean of its divisors is an integer number (241969332).

Almost surely, 2^945880073 is an apocalyptic number.

It is an amenable number.

945880073 is a deficient number, since it is larger than the sum of its proper divisors (21997255).

945880073 is a wasteful number, since it uses less digits than its factorization.

945880073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21997254.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 945880073 is about 30755.1633551181. The cubic root of 945880073 is about 981.6244310397.

The spelling of 945880073 in words is "nine hundred forty-five million, eight hundred eighty thousand, seventy-three".