49381769 has 4 divisors (see below), whose sum is σ = 49417344. Its totient is φ = 49346196.

The previous prime is 49381721. The next prime is 49381771. The reversal of 49381769 is 96718394.

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 a de Polignac number, because none of the positive numbers 2^k-49381769 is a prime.

It is a super-2 number, since 2×49381769² = 4877118219138722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49381169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15617 + ... + 18510.

It is an arithmetic number, because the mean of its divisors is an integer number (12354336).

Almost surely, 2^49381769 is an apocalyptic number.

It is an amenable number.

49381769 is a deficient number, since it is larger than the sum of its proper divisors (35575).

49381769 is a wasteful number, since it uses less digits than its factorization.

49381769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35574.

The product of its digits is 326592, while the sum is 47.

The square root of 49381769 is about 7027.2163051951. The cubic root of 49381769 is about 366.8784601016.

The spelling of 49381769 in words is "forty-nine million, three hundred eighty-one thousand, seven hundred sixty-nine".