107721449 has 8 divisors (see below), whose sum is σ = 118679040. Its totient is φ = 96958000.

The previous prime is 107721421. The next prime is 107721479. The reversal of 107721449 is 944127701.

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 107721449 - 2²⁴ = 90944233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (107721479) 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, 47369 + ... + 49590.

It is an arithmetic number, because the mean of its divisors is an integer number (14834880).

Almost surely, 2^107721449 is an apocalyptic number.

It is an amenable number.

107721449 is a deficient number, since it is larger than the sum of its proper divisors (10957591).

107721449 is a wasteful number, since it uses less digits than its factorization.

107721449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97071.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 107721449 is about 10378.8944016210. The cubic root of 107721449 is about 475.8105444399.

It can be divided in two parts, 10772 and 1449, that added together give a palindrome (12221).

The spelling of 107721449 in words is "one hundred seven million, seven hundred twenty-one thousand, four hundred forty-nine".