49209923 has 8 divisors (see below), whose sum is σ = 56599392. Its totient is φ = 41910336.

The previous prime is 49209913. The next prime is 49209947. The reversal of 49209923 is 32990294.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49209923 - 2⁴ = 49209907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49209913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21290 + ... + 23487.

It is an arithmetic number, because the mean of its divisors is an integer number (7074924).

Almost surely, 2^49209923 is an apocalyptic number.

49209923 is a deficient number, since it is larger than the sum of its proper divisors (7389469).

49209923 is a wasteful number, since it uses less digits than its factorization.

49209923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44941.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 49209923 is about 7014.9784746641. The cubic root of 49209923 is about 366.4523928045.

The spelling of 49209923 in words is "forty-nine million, two hundred nine thousand, nine hundred twenty-three".