844950997 has 4 divisors (see below), whose sum is σ = 921764736. Its totient is φ = 768137260.

The previous prime is 844950947. The next prime is 844951013. The reversal of 844950997 is 799059448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 844950997 - 2¹⁵ = 844918229 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 (844950947) 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, 38406853 + ... + 38406874.

It is an arithmetic number, because the mean of its divisors is an integer number (230441184).

Almost surely, 2^844950997 is an apocalyptic number.

It is an amenable number.

844950997 is a deficient number, since it is larger than the sum of its proper divisors (76813739).

844950997 is a wasteful number, since it uses less digits than its factorization.

844950997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76813738.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 844950997 is about 29068.0408180531. The cubic root of 844950997 is about 945.3889189832.

The spelling of 844950997 in words is "eight hundred forty-four million, nine hundred fifty thousand, nine hundred ninety-seven".