49897903 has 4 divisors (see below), whose sum is σ = 54434088. Its totient is φ = 45361720.

The previous prime is 49897891. The next prime is 49897921. The reversal of 49897903 is 30979894.

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 49897903 - 2⁹ = 49897391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49897993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268076 + ... + 2268097.

It is an arithmetic number, because the mean of its divisors is an integer number (13608522).

Almost surely, 2^49897903 is an apocalyptic number.

49897903 is a deficient number, since it is larger than the sum of its proper divisors (4536185).

49897903 is a wasteful number, since it uses less digits than its factorization.

49897903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536184.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 49897903 is about 7063.8447746252. The cubic root of 49897903 is about 368.1522266204.

The spelling of 49897903 in words is "forty-nine million, eight hundred ninety-seven thousand, nine hundred three".