49297919 has 4 divisors (see below), whose sum is σ = 53779560. Its totient is φ = 44816280.

The previous prime is 49297903. The next prime is 49297931. The reversal of 49297919 is 91979294.

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

It is a cyclic number.

It is not a de Polignac number, because 49297919 - 2⁴ = 49297903 is a prime.

It is a super-2 number, since 2×49297919² = 4860569635461122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49297319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240804 + ... + 2240825.

It is an arithmetic number, because the mean of its divisors is an integer number (13444890).

Almost surely, 2^49297919 is an apocalyptic number.

49297919 is a deficient number, since it is larger than the sum of its proper divisors (4481641).

49297919 is a wasteful number, since it uses less digits than its factorization.

49297919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481640.

The product of its digits is 367416, while the sum is 50.

The square root of 49297919 is about 7021.2476811461. The cubic root of 49297919 is about 366.6706898548.

The spelling of 49297919 in words is "forty-nine million, two hundred ninety-seven thousand, nine hundred nineteen".