49172969 has 4 divisors (see below), whose sum is σ = 51761040. Its totient is φ = 46584900.

The previous prime is 49172947. The next prime is 49172989. The reversal of 49172969 is 96927194.

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 49172969 - 2⁸ = 49172713 is a prime.

It is a super-2 number, since 2×49172969² = 4835961760549922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49172909) 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, 1294007 + ... + 1294044.

It is an arithmetic number, because the mean of its divisors is an integer number (12940260).

Almost surely, 2^49172969 is an apocalyptic number.

It is an amenable number.

49172969 is a deficient number, since it is larger than the sum of its proper divisors (2588071).

49172969 is a wasteful number, since it uses less digits than its factorization.

49172969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588070.

The product of its digits is 244944, while the sum is 47.

The square root of 49172969 is about 7012.3440446116. The cubic root of 49172969 is about 366.3606411681.

The spelling of 49172969 in words is "forty-nine million, one hundred seventy-two thousand, nine hundred sixty-nine".