49372391 has 4 divisors (see below), whose sum is σ = 49389192. Its totient is φ = 49355592.

The previous prime is 49372387. The next prime is 49372397. The reversal of 49372391 is 19327394.

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

It is a cyclic number.

It is not a de Polignac number, because 49372391 - 2² = 49372387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49372397) 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, 2705 + ... + 10298.

It is an arithmetic number, because the mean of its divisors is an integer number (12347298).

Almost surely, 2^49372391 is an apocalyptic number.

49372391 is a deficient number, since it is larger than the sum of its proper divisors (16801).

49372391 is a wasteful number, since it uses less digits than its factorization.

49372391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16800.

The product of its digits is 40824, while the sum is 38.

The square root of 49372391 is about 7026.5490107164. The cubic root of 49372391 is about 366.8552342291.

The spelling of 49372391 in words is "forty-nine million, three hundred seventy-two thousand, three hundred ninety-one".