49191947 has 8 divisors (see below), whose sum is σ = 58033152. Its totient is φ = 40804200.

The previous prime is 49191943. The next prime is 49191953. The reversal of 49191947 is 74919194.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49191947 - 2² = 49191943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49191898 and 49191907.

It is not an unprimeable number, because it can be changed into a prime (49191943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113129 + ... + 113562.

It is an arithmetic number, because the mean of its divisors is an integer number (7254144).

Almost surely, 2^49191947 is an apocalyptic number.

49191947 is a deficient number, since it is larger than the sum of its proper divisors (8841205).

49191947 is a wasteful number, since it uses less digits than its factorization.

49191947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226729.

The product of its digits is 81648, while the sum is 44.

The square root of 49191947 is about 7013.6970992480. The cubic root of 49191947 is about 366.4077666392.

The spelling of 49191947 in words is "forty-nine million, one hundred ninety-one thousand, nine hundred forty-seven".