849287401 has 4 divisors (see below), whose sum is σ = 849369600. Its totient is φ = 849205204.

The previous prime is 849287399. The next prime is 849287419. The reversal of 849287401 is 104782948.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 849287401 - 2¹ = 849287399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849287701) 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, 22921 + ... + 47158.

It is an arithmetic number, because the mean of its divisors is an integer number (212342400).

Almost surely, 2^849287401 is an apocalyptic number.

It is an amenable number.

849287401 is a deficient number, since it is larger than the sum of its proper divisors (82199).

849287401 is a wasteful number, since it uses less digits than its factorization.

849287401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82198.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 849287401 is about 29142.5359397565. The cubic root of 849287401 is about 947.0034485107.

It can be divided in two parts, 84928 and 7401, that added together give a palindrome (92329).

The spelling of 849287401 in words is "eight hundred forty-nine million, two hundred eighty-seven thousand, four hundred one".