1396720583 has 8 divisors (see below), whose sum is σ = 1404243456. Its totient is φ = 1389209400.

The previous prime is 1396720579. The next prime is 1396720601. The reversal of 1396720583 is 3850276931.

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 1396720583 - 2² = 1396720579 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 (1396720483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339368 + ... + 343458.

It is an arithmetic number, because the mean of its divisors is an integer number (175530432).

Almost surely, 2^1396720583 is an apocalyptic number.

1396720583 is a deficient number, since it is larger than the sum of its proper divisors (7522873).

1396720583 is a wasteful number, since it uses less digits than its factorization.

1396720583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1396720583 is about 37372.7251214037. The cubic root of 1396720583 is about 1117.8147716534.

The spelling of 1396720583 in words is "one billion, three hundred ninety-six million, seven hundred twenty thousand, five hundred eighty-three".