49636397 has 4 divisors (see below), whose sum is σ = 49650720. Its totient is φ = 49622076.

The previous prime is 49636339. The next prime is 49636399. The reversal of 49636397 is 79363694.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79363694 = 2 ⋅39681847.

It is a cyclic number.

It is not a de Polignac number, because 49636397 - 2¹⁸ = 49374253 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 (49636399) 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, 1658 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (12412680).

Almost surely, 2^49636397 is an apocalyptic number.

It is an amenable number.

49636397 is a deficient number, since it is larger than the sum of its proper divisors (14323).

49636397 is an equidigital number, since it uses as much as digits as its factorization.

49636397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14322.

The product of its digits is 734832, while the sum is 47.

The square root of 49636397 is about 7045.3102841536. The cubic root of 49636397 is about 367.5079597826.

The spelling of 49636397 in words is "forty-nine million, six hundred thirty-six thousand, three hundred ninety-seven".