49739894 has 4 divisors (see below), whose sum is σ = 74609844. Its totient is φ = 24869946.

The previous prime is 49739857. The next prime is 49739897. The reversal of 49739894 is 49893794.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49739897) 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 as a sum of consecutive naturals, namely, 12434972 + ... + 12434975.

It is an arithmetic number, because the mean of its divisors is an integer number (18652461).

Almost surely, 2^49739894 is an apocalyptic number.

49739894 is a deficient number, since it is larger than the sum of its proper divisors (24869950).

49739894 is a wasteful number, since it uses less digits than its factorization.

49739894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24869949.

The product of its digits is 1959552, while the sum is 53.

The square root of 49739894 is about 7052.6515581021. The cubic root of 49739894 is about 367.7632131039.

The spelling of 49739894 in words is "forty-nine million, seven hundred thirty-nine thousand, eight hundred ninety-four".