49389097 has 4 divisors (see below), whose sum is σ = 52294356. Its totient is φ = 46483840.

The previous prime is 49389061. The next prime is 49389139. The reversal of 49389097 is 79098394.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23775376 + 25613721 = 4876^2 + 5061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49389097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49389097.

It is not an unprimeable number, because it can be changed into a prime (49389017) 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, 1452604 + ... + 1452637.

It is an arithmetic number, because the mean of its divisors is an integer number (13073589).

Almost surely, 2^49389097 is an apocalyptic number.

It is an amenable number.

49389097 is a deficient number, since it is larger than the sum of its proper divisors (2905259).

49389097 is a wasteful number, since it uses less digits than its factorization.

49389097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905258.

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

The square root of 49389097 is about 7027.7376871935. The cubic root of 49389097 is about 366.8966068282.

The spelling of 49389097 in words is "forty-nine million, three hundred eighty-nine thousand, ninety-seven".