1396484591 has 8 divisors (see below), whose sum is σ = 1474155120. Its totient is φ = 1319231232.

The previous prime is 1396484581. The next prime is 1396484597. The reversal of 1396484591 is 1954846931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396484591 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 (1396484597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97400 + ... + 110813.

It is an arithmetic number, because the mean of its divisors is an integer number (184269390).

Almost surely, 2^1396484591 is an apocalyptic number.

1396484591 is a deficient number, since it is larger than the sum of its proper divisors (77670529).

1396484591 is a wasteful number, since it uses less digits than its factorization.

1396484591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208585.

The product of its digits is 933120, while the sum is 50.

The square root of 1396484591 is about 37369.5677122441. The cubic root of 1396484591 is about 1117.7518122217.

The spelling of 1396484591 in words is "one billion, three hundred ninety-six million, four hundred eighty-four thousand, five hundred ninety-one".