49408397 has 4 divisors (see below), whose sum is σ = 49711680. Its totient is φ = 49105116.

The previous prime is 49408391. The next prime is 49408399. The reversal of 49408397 is 79380494.

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 49408397 - 2¹⁰ = 49407373 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 (49408391) 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, 151397 + ... + 151722.

It is an arithmetic number, because the mean of its divisors is an integer number (12427920).

Almost surely, 2^49408397 is an apocalyptic number.

It is an amenable number.

49408397 is a deficient number, since it is larger than the sum of its proper divisors (303283).

49408397 is a wasteful number, since it uses less digits than its factorization.

49408397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303282.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 49408397 is about 7029.1106834364. The cubic root of 49408397 is about 366.9443918845.

The spelling of 49408397 in words is "forty-nine million, four hundred eight thousand, three hundred ninety-seven".