1391600889 has 24 divisors (see below), whose sum is σ = 2300680512. Its totient is φ = 794011680.

The previous prime is 1391600887. The next prime is 1391600891. The reversal of 1391600889 is 9880061931.

1391600889 is a `hidden beast` number, since 1 + 39 + 1 + 600 + 8 + 8 + 9 = 666.

1391600889 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1391600887) and next prime (1391600891).

It is not a de Polignac number, because 1391600889 - 2¹ = 1391600887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1391600887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26859 + ... + 59199.

It is an arithmetic number, because the mean of its divisors is an integer number (95861688).

Almost surely, 2^1391600889 is an apocalyptic number.

It is an amenable number.

1391600889 is a deficient number, since it is larger than the sum of its proper divisors (909079623).

1391600889 is a wasteful number, since it uses less digits than its factorization.

1391600889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33037 (or 33034 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1391600889 is about 37304.1671800886. The cubic root of 1391600889 is about 1116.4473122067.

The spelling of 1391600889 in words is "one billion, three hundred ninety-one million, six hundred thousand, eight hundred eighty-nine".