48431291 has 12 divisors (see below), whose sum is σ = 50780256. Its totient is φ = 46169280.

The previous prime is 48431263. The next prime is 48431293. The reversal of 48431291 is 19213484.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-48431291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48431293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78701 + ... + 79313.

It is an arithmetic number, because the mean of its divisors is an integer number (4231688).

Almost surely, 2^48431291 is an apocalyptic number.

48431291 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

48431291 is a deficient number, since it is larger than the sum of its proper divisors (2348965).

48431291 is an equidigital number, since it uses as much as digits as its factorization.

48431291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 701 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 48431291 is about 6959.2593715136. The cubic root of 48431291 is about 364.5093576502.

The spelling of 48431291 in words is "forty-eight million, four hundred thirty-one thousand, two hundred ninety-one".