49479169 has 4 divisors (see below), whose sum is σ = 50686020. Its totient is φ = 48272320.

The previous prime is 49479149. The next prime is 49479179. The reversal of 49479169 is 96197494.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22439169 + 27040000 = 4737^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 49479169 - 2¹³ = 49470977 is a prime.

It is a super-2 number, since 2×49479169² = 4896376329861122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49479149) 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, 603364 + ... + 603445.

It is an arithmetic number, because the mean of its divisors is an integer number (12671505).

Almost surely, 2^49479169 is an apocalyptic number.

It is an amenable number.

49479169 is a deficient number, since it is larger than the sum of its proper divisors (1206851).

49479169 is a wasteful number, since it uses less digits than its factorization.

49479169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206850.

The product of its digits is 489888, while the sum is 49.

The square root of 49479169 is about 7034.1430892469. The cubic root of 49479169 is about 367.1195105588.

The spelling of 49479169 in words is "forty-nine million, four hundred seventy-nine thousand, one hundred sixty-nine".