49129379 has 4 divisors (see below), whose sum is σ = 52908576. Its totient is φ = 45350184.

The previous prime is 49129369. The next prime is 49129397. The reversal of 49129379 is 97392194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97392194 = 2 ⋅48696097.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49129379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49129309) 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, 1889579 + ... + 1889604.

It is an arithmetic number, because the mean of its divisors is an integer number (13227144).

Almost surely, 2^49129379 is an apocalyptic number.

49129379 is a deficient number, since it is larger than the sum of its proper divisors (3779197).

49129379 is a wasteful number, since it uses less digits than its factorization.

49129379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779196.

The product of its digits is 122472, while the sum is 44.

The square root of 49129379 is about 7009.2352649915. The cubic root of 49129379 is about 366.2523541571.

The spelling of 49129379 in words is "forty-nine million, one hundred twenty-nine thousand, three hundred seventy-nine".