49397739 has 16 divisors (see below), whose sum is σ = 70471680. Its totient is φ = 30684960.

The previous prime is 49397737. The next prime is 49397741. The reversal of 49397739 is 93779394.

It is an interprime number because it is at equal distance from previous prime (49397737) and next prime (49397741).

It is not a de Polignac number, because 49397739 - 2¹ = 49397737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49397691 and 49397700.

It is not an unprimeable number, because it can be changed into a prime (49397731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3627 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (4404480).

Almost surely, 2^49397739 is an apocalyptic number.

49397739 is a deficient number, since it is larger than the sum of its proper divisors (21073941).

49397739 is a wasteful number, since it uses less digits than its factorization.

49397739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14290.

The product of its digits is 1285956, while the sum is 51.

The square root of 49397739 is about 7028.3525096569. The cubic root of 49397739 is about 366.9180051783.

The spelling of 49397739 in words is "forty-nine million, three hundred ninety-seven thousand, seven hundred thirty-nine".