1591079 has 12 divisors (see below), whose sum is σ = 1949400. Its totient is φ = 1291248.

The previous prime is 1591033. The next prime is 1591097. The reversal of 1591079 is 9701951.

It is a de Polignac number, because none of the positive numbers 2^k-1591079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1591099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77 + ... + 1785.

It is an arithmetic number, because the mean of its divisors is an integer number (162450).

2^1591079 is an apocalyptic number.

1591079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1591079 is a deficient number, since it is larger than the sum of its proper divisors (358321).

1591079 is a wasteful number, since it uses less digits than its factorization.

1591079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742 (or 1735 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 1591079 is about 1261.3798000602. The cubic root of 1591079 is about 116.7429279174.

The spelling of 1591079 in words is "one million, five hundred ninety-one thousand, seventy-nine".