49984397 has 4 divisors (see below), whose sum is σ = 50024640. Its totient is φ = 49944156.

The previous prime is 49984393. The next prime is 49984399. The reversal of 49984397 is 79348994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49984397 - 2² = 49984393 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 (49984393) 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, 18197 + ... + 20762.

It is an arithmetic number, because the mean of its divisors is an integer number (12506160).

Almost surely, 2^49984397 is an apocalyptic number.

It is an amenable number.

49984397 is a deficient number, since it is larger than the sum of its proper divisors (40243).

49984397 is a wasteful number, since it uses less digits than its factorization.

49984397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40242.

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

The square root of 49984397 is about 7069.9644270675. The cubic root of 49984397 is about 368.3648245815.

The spelling of 49984397 in words is "forty-nine million, nine hundred eighty-four thousand, three hundred ninety-seven".