1671355 has 24 divisors (see below), whose sum is σ = 2473632. Its totient is φ = 1058304.

The previous prime is 1671349. The next prime is 1671359. The reversal of 1671355 is 5531761.

It is not a de Polignac number, because 1671355 - 2³ = 1671347 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1671359) 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, 31509 + ... + 31561.

It is an arithmetic number, because the mean of its divisors is an integer number (103068).

2^1671355 is an apocalyptic number.

1671355 is a deficient number, since it is larger than the sum of its proper divisors (802277).

1671355 is an equidigital number, since it uses as much as digits as its factorization.

1671355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 82 counting only the distinct ones).

The product of its digits is 3150, while the sum is 28.

The square root of 1671355 is about 1292.8089572709. The cubic root of 1671355 is about 118.6741787456.

The spelling of 1671355 in words is "one million, six hundred seventy-one thousand, three hundred fifty-five".