949991473 has 4 divisors (see below), whose sum is σ = 950246640. Its totient is φ = 949736308.

The previous prime is 949991447. The next prime is 949991477. The reversal of 949991473 is 374199949.

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, and also an emirpimes, since its reverse is a distinct semiprime: 374199949 = 23 ⋅16269563.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-949991473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (949991477) 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, 121915 + ... + 129472.

It is an arithmetic number, because the mean of its divisors is an integer number (237561660).

Almost surely, 2^949991473 is an apocalyptic number.

It is an amenable number.

949991473 is a deficient number, since it is larger than the sum of its proper divisors (255167).

949991473 is a wasteful number, since it uses less digits than its factorization.

949991473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255166.

The product of its digits is 2204496, while the sum is 55.

The square root of 949991473 is about 30821.9316883287. The cubic root of 949991473 is about 983.0446312734.

The spelling of 949991473 in words is "nine hundred forty-nine million, nine hundred ninety-one thousand, four hundred seventy-three".