444724897 has 4 divisors (see below), whose sum is σ = 445131396. Its totient is φ = 444318400.

The previous prime is 444724859. The next prime is 444724933. The reversal of 444724897 is 798427444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48874081 + 395850816 = 6991^2 + 19896^2 .

It is a cyclic number.

It is not a de Polignac number, because 444724897 - 2¹¹ = 444722849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444724897.

It is not an unprimeable number, because it can be changed into a prime (444724807) 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, 201604 + ... + 203797.

It is an arithmetic number, because the mean of its divisors is an integer number (111282849).

Almost surely, 2^444724897 is an apocalyptic number.

It is an amenable number.

444724897 is a deficient number, since it is larger than the sum of its proper divisors (406499).

444724897 is a wasteful number, since it uses less digits than its factorization.

444724897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406498.

The product of its digits is 1806336, while the sum is 49.

The square root of 444724897 is about 21088.5015351969. The cubic root of 444724897 is about 763.3033136346.

The spelling of 444724897 in words is "four hundred forty-four million, seven hundred twenty-four thousand, eight hundred ninety-seven".