49179491 has 4 divisors (see below), whose sum is σ = 49194000. Its totient is φ = 49164984.

The previous prime is 49179479. The next prime is 49179503. The reversal of 49179491 is 19497194.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (49179479) and next prime (49179503).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49179491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49179191) 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, 845 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (12298500).

Almost surely, 2^49179491 is an apocalyptic number.

49179491 is a deficient number, since it is larger than the sum of its proper divisors (14509).

49179491 is an equidigital number, since it uses as much as digits as its factorization.

49179491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14508.

The product of its digits is 81648, while the sum is 44.

The square root of 49179491 is about 7012.8090662729. The cubic root of 49179491 is about 366.3768377257.

The spelling of 49179491 in words is "forty-nine million, one hundred seventy-nine thousand, four hundred ninety-one".