49919387 has 6 divisors (see below), whose sum is σ = 58069548. Its totient is φ = 42788004.

The previous prime is 49919383. The next prime is 49919399. The reversal of 49919387 is 78391994.

It is not a de Polignac number, because 49919387 - 2² = 49919383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49919383) 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 5 ways as a sum of consecutive naturals, for example, 509333 + ... + 509430.

It is an arithmetic number, because the mean of its divisors is an integer number (9678258).

Almost surely, 2^49919387 is an apocalyptic number.

49919387 is a deficient number, since it is larger than the sum of its proper divisors (8150161).

49919387 is a wasteful number, since it uses less digits than its factorization.

49919387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018777 (or 1018770 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 49919387 is about 7065.3653125652. The cubic root of 49919387 is about 368.2050561455.

The spelling of 49919387 in words is "forty-nine million, nine hundred nineteen thousand, three hundred eighty-seven".